Meaning & Usage
The N1 grammar pattern いかんによらず (ikan ni yorazu) conveys that a certain outcome, decision, or action will proceed irrespective of a particular factor or situation. It translates most accurately to English phrases like 'regardless of,' 'irrespective of,' or 'no matter what/how/who/when.'
This phrase carries a strong sense of unchangeability and determination. It emphasizes that the main clause's content is fixed and absolute, entirely unaffected by the condition preceding いかんによらず.
This grammar point is highly formal and predominantly found in written Japanese, such as official documents, legal texts, company regulations, public announcements, academic papers, and formal speeches. You are unlikely to hear it in everyday casual conversations. Its formality lends an air of authority and definitiveness to the statement, making it suitable for situations where rules, policies, or unwavering commitments are being conveyed.
Essentially, いかんによらず establishes a universal condition. It indicates that the subsequent statement holds true and remains unaffected, regardless of the preceding variable. This variable can be a specific noun (e.g., results, intention) or a range of possibilities suggested by a question word (e.g., what, how, who).
It is more emphatic and resolute than similar expressions like 「～にかかわらず」 or 「～に関係なく」, though these can often be interchangeable in less formal contexts.
Imagine いかんによらず as drawing a firm boundary. Whatever lies within that boundary—the main clause—is immutable; nothing outside (the preceding factor) can alter it. This phrase declares the main statement's independence, asserting that its validity or execution is not dependent on, nor influenced by, the specified condition. This perspective helps explain its prevalence in regulatory or policy-setting contexts, where clarity and unwavering commitment are paramount.
For instance, a company might state, 「結果のいかんによらず、努力を評価します」 (Regardless of the results, we will evaluate your efforts). This communicates a strong policy: effort is valued independently of the outcome. The phrase highlights a steadfast principle, one not contingent upon fluctuating external factors, thereby establishing a clear and authoritative stance.
Structure & Formation
The structure for いかんによらず is straightforward, connecting mainly with nouns or question words followed by 「か」. The core component 「いかん」 signifies 'how something is' or 'the state of affairs,' while 「によらず」 is the negative form of 「による」 (to depend on, to be based on).
1. Noun + の + いかんによらず
This is the most common pattern. A noun specifies the factor that will not influence the subsequent action or state.
- Noun + の + いかんによらず
Example: 状況のいかんによらず (regardless of the situation)
2. Question Word + か + いかんによらず
This pattern is used when the factor is expressed through a question word, implying a range of possibilities or an unknown variable. The 「か」 functions similarly to how it does in structures like 「誰が来ても」 (no matter who comes), indicating an exhaustive set of possibilities.
- 何 (なに) + か + いかんによらず (regardless of what)
- どう + か + いかんによらず (regardless of how)
- 誰 (だれ) + か + いかんによらず (regardless of who)
- いつ + か + いかんによらず (regardless of when)
- どこ + か + いかんによらず (regardless of where)
- どちら + か + いかんによらず (regardless of which)
Example: 理由のいかんによらず (regardless of the reason), 成否のいかんによらず (regardless of success or failure), 何か いかんによらず (regardless of what)
| Type | Pattern | Example |
|---|---|---|
| Noun | Noun + の + いかんによらず | 結果のいかんによらず |
| Question Word | Question Word + か + いかんによらず | 何か いかんによらず |
Example Sentences
General Usage & Policies
理由のいかんによらず、当日のキャンセルはできません。
Riyū no ikan ni yorazu, tōjitsu no kyanseru wa dekimasen.
Regardless of the reason, same-day cancellations are not permitted.
成績のいかんによらず、真面目な努力を評価します。
Seiseki no ikan ni yorazu, majime na doryoku o hyōka shimasu.
Regardless of academic performance, diligent effort will be evaluated.
国籍のいかんによらず、全ての従業員は平等に扱われます。
Kokuseki no ikan ni yorazu, subete no jūgyōin wa byōdō ni atsukawaremasu.
Regardless of nationality, all employees will be treated equally.
その決定は、周囲の意見のいかんによらず実行されます。
Sono kettei wa, shūi no iken no ikan ni yorazu jikkō saremasu.
That decision will be carried out regardless of the opinions of those around.
成否のいかんによらず、努力を続けることが重要だ。
Seihi no ikan ni yorazu, doryoku o tsuzukeru koto ga jūyō da.
Regardless of success or failure, continuing to make an effort is important.
性別のいかんによらず、能力のある人材を求めています。
Seibetsu no ikan ni yorazu, nōryoku no aru jinzai o motomete imasu.
Regardless of gender, we are looking for talented individuals.
報酬のいかんによらず、彼は喜んでその仕事を引き受けた。
Hōshū no ikan ni yorazu, kare wa yorokonde sono shigoto o hikiuketa.
Regardless of the remuneration, he gladly took on that job.
年齢のいかんによらず、参加を歓迎します。
Nenrei no ikan ni yorazu, sanka o kangei shimasu.
Regardless of age, participation is welcome.
費用のいかんによらず、最高級のサービスを提供いたします。
Hiyō no ikan ni yorazu, saikōkyū no sābisu o teikyō itashimasu.
Regardless of cost, we will provide the highest quality service.
Situational Independence
天気のいかんによらず、会議は予定通り開催されます。
Tenki no ikan ni yorazu, kaigi wa yotei-dōri kaisai saremasu.
Regardless of the weather, the meeting will be held as scheduled.
経済状況のいかんによらず、投資計画は変更されません。
Keizai jōkyō no ikan ni yorazu, tōshi keikaku wa henkō saremasen.
Regardless of the economic situation, the investment plan will not be changed.
状況のいかんによらず、彼は常に冷静だ。
Jōkyō no ikan ni yorazu, kare wa tsune ni reisei da.
Regardless of the situation, he is always calm.
Question Word Usage
何か いかんによらず、我々は目的を達成します。
Nani ka ikan ni yorazu, wareware wa mokuteki o tassei shimasu.
Regardless of what happens, we will achieve our goal.
どうか いかんによらず、契約は有効です。
Dō ka ikan ni yorazu, keiyaku wa yūkō desu.
Regardless of how it happens, the contract is valid.
誰か いかんによらず、この規則は適用されます。
Dare ka ikan ni yorazu, kono kisoku wa tekiyō saremasu.
Regardless of who it is, this rule applies.
いつか いかんによらず、緊急時にはこのシステムを使用してください。
Itsu ka ikan ni yorazu, kinkyūji ni wa kono shisutemu o shiyō shite kudasai.
Regardless of when it happens, please use this system in an emergency.
どこか いかんによらず、情報は常に安全に保たれます。
Doko ka ikan ni yorazu, jōhō wa tsune ni anzen ni tamotaremasu.
Regardless of where it is, the information will always be kept secure.
どちらか いかんによらず、あなたの選んだ道を応援します。
Dochira ka ikan ni yorazu, anata no eranda michi o ōen shimasu.
Regardless of which one you choose, I will support the path you take.
Common Mistakes
Mistake 1: Using it in casual conversation
いかんによらず is a highly formal expression. Using it in everyday conversation can sound stiff, unnatural, or even pompous. It belongs to formal, often written, contexts.
❌ 明日、天気のいかんによらず、ピクニック行こうよ！
✅ 明日、天気に関わらず、ピクニック行こうよ！ (Ashita, tenki ni kakawarazu, pikunikku ikō yo!)
Explanation: For casual situations, 「～にかかわらず」 or 「～に関係なく」 are much more appropriate and natural-sounding. 「天気にかかわらず」 is a common and natural way to express "regardless of the weather" in spoken Japanese.
Mistake 2: Incorrect particle usage with nouns
When connecting to a noun, the particle 「の」 is essential. Omitting it is a common error.
❌ 結果いかんによらず、努力を評価します。
✅ 結果のいかんによらず、努力を評価します。(Kekka no ikan ni yorazu, doryoku o hyōka shimasu.)
Explanation: Just like many other formal noun-modifying phrases (e.g., 「～の際」, 「～のもと」), 「いかん」 functions as a quasi-noun here, requiring 「の」 to connect to the preceding noun. Always remember the 「の」.
Mistake 3: Omitting 「か」 with question words
When using question words (何, どう, 誰, etc.), the particle 「か」 is necessary to convey the meaning of 'no matter what/how/who.'
❌ 何いかんによらず、目標を達成する。
✅ 何か いかんによらず、目標を達成する。(Nani ka ikan ni yorazu, mokuhyō o tassei suru.)
Explanation: The 「か」 here indicates a comprehensive range of possibilities or uncertainty, which is crucial for the 'no matter what' nuance. Without it, the sentence feels incomplete or grammatically incorrect.
Mistake 4: Misunderstanding the nuance with similar expressions
While often interchangeable with 「～にかかわらず」, 「いかんによらず」 carries a stronger, more unyielding, and official nuance. Using it when a milder expression would suffice can make your writing seem overly rigid.
❌ 彼は疲労のいかんによらず、いつも笑顔だ。
✅ 彼は疲労に関わらず、いつも笑顔だ。(Kare wa hirō ni kakawarazu, itsumo egao da.)
Explanation: While not strictly 'wrong,' 「疲労のいかんによらず」 implies a very formal or policy-like statement about his state. For a personal observation, 「疲労にかかわらず」 sounds more natural and less dramatic. 「いかんによらず」 is best reserved for situations demanding a formal, unwavering declaration.
Cultural Notes
In Japanese culture, the use of いかんによらず highlights a strong emphasis on clarity, unwavering principles, and universality within formal contexts. In a society where clear communication in official settings is highly valued, this grammar point is vital. It establishes definitive rules and policies, leaving little room for ambiguity or individual interpretation.
You will frequently encounter いかんによらず in legal documents, contracts, company charters, and governmental notices. Its presence indicates that a specific condition, right, or obligation is absolute, not contingent on any stated variable. This level of precision is highly valued in formal Japanese communication to prevent misunderstandings and uphold established frameworks.
Furthermore, the usage of いかんによらず often conveys a sense of authority. When an organization or an individual in a position of power uses this phrase, it underscores their resolve and the universal application of their statement. It implies that a decision has been thoroughly considered and will be upheld, irrespective of counterarguments, changing circumstances, or personal preferences. Thus, it becomes a powerful linguistic tool in contexts demanding steadfastness and commitment.
JLPT Tips
For the N1 JLPT, a solid understanding of いかんによらず is essential, especially for reading comprehension and grammar questions. Here are some tips to help you grasp it thoroughly:
1. Recognize its formality: Always remember that いかんによらず is a highly formal expression. When you encounter it in a JLPT reading passage, understand that the text itself is likely formal, such as an official announcement, a legal document, or an academic article. This insight can help you grasp the overall tone and context of the passage.
2. Pay attention to the connecting form: Master the two main connection patterns: Noun + の + いかんによらず and Question Word + か + いかんによらず. In grammar questions, you might be tested on selecting the correct particle (の or か) or the appropriate word type to precede it. For instance, if you see 「結果＿＿いかんによらず」, you should immediately know that 「の」 is the correct particle.
3. Understand the nuanced meaning: While it generally means 'regardless of,' いかんによらず conveys a strong sense of a fixed policy or an unwavering determination. It implies that a decision or outcome is completely unaffected by the preceding factor. Distinguish this stronger nuance from slightly milder expressions like 「～にかかわらず」. This can be key in questions that ask you to choose the most appropriate expression based on context and nuance.
4. Practice substitution: Try to substitute sentences containing 「～にかかわらず」 or 「～を問わず」 with いかんによらず where appropriate, and vice-versa. This practice will help you internalize the subtle differences in formality and emphasis. For example, if a sentence uses 「経験の有無を問わず」, try to rephrase it using 「経験のいかんによらず」 and consider how the nuance changes (it might sound a bit more rigid or official).
5. Contextual clues: Look for surrounding vocabulary and sentence structures that reinforce formality or policy-making, such as polite verbs, honorifics, or words related to regulations, laws, or universal principles. These clues will help confirm that いかんによらず is the intended grammar point.