〜いかんによらず / 〜いかんにかかわらず (regardless of / irrespective of)
N1 grammar: classical formal expression 〜いかんによらず/〜いかんにかかわらず meaning 'regardless of the nature/circumstances of X.' Used in legal texts, regulations, and formal announcements.
〜いかんによらず / 〜いかんにかかわらず
Formality Level: Formal — legal texts, regulations, official announcements, formal academic writing
Classical Origin: いかん (ikan) is a Sino-Japanese compound: 如何 (rú hé in Mandarin), classical Chinese for "how it is / what the state of things is." It entered Japanese formal writing through kanbun scholarship. 〜いかんによらず means "regardless of what X is like" — unconditional applicability. The variant 〜いかんにかかわらず adds the additional emphatic marker かかわらず (regardless/irrespective of). A close synonym is 〜いかんを問わず ("without questioning how X is").
Structure
| Form | Example |
|---|---|
| Noun (の) + いかんによらず | 理由のいかんによらず |
| Noun (の) + いかんにかかわらず | 結果のいかんにかかわらず |
| Noun (の) + いかんを問わず | 理由のいかんを問わず |
Meaning
"Regardless of the nature/circumstances/manner of X / Irrespective of X / Whatever X may be"
Expresses that a rule, obligation, or conclusion holds true unconditionally, regardless of any variation in the relevant condition.
Example Sentences
| Japanese | English |
|---|---|
| 国籍のいかんにかかわらず、本法の規定は適用される。 | The provisions of this law apply regardless of nationality. |
| 理由のいかんによらず、期限後の申請は受理しない。 | Applications submitted after the deadline shall not be accepted, regardless of the reason. |
| 結果のいかんにかかわらず、参加者全員に修了証を発行する。 | A certificate of completion shall be issued to all participants regardless of the result. |
| 業績のいかんを問わず、全社員に基本給を保証するものとする。 | Basic salary shall be guaranteed to all employees regardless of performance. |
| 経緯のいかんによらず、当事者間の最終合意が優先される。 | The final agreement between the parties shall take precedence regardless of the background circumstances. |
| 手段のいかんにかかわらず、目的の達成が最優先とされた。 | Achievement of the objective was given highest priority regardless of the means. |
Companion Pattern: 〜いかんによっては / 〜いかんでは
The conditional complement: "depending on how/what X is, Y may happen."
- 審査結果のいかんによっては、追加書類の提出を求めることがある。 — Depending on the review result, submission of additional documents may be required.
Comparison with N2 Equivalent
| Pattern | Register | Meaning | Key Difference |
|---|---|---|---|
| 〜いかんによらず | Formal/legal | Regardless of the nature of X | Classical いかん base; strictly formal; specifically "what X is like" |
| 〜にかかわらず | Semi-formal | Regardless of X | More modern; can use with broader noun types |
| 〜に関係なく | All registers | Without relation to X | Neutral; most casual of the group |
| 〜を問わず | Semi-formal | Without asking / regardless of X | Slightly less formal than いかんを問わず |
When NOT to Use
- Do not use in casual writing or speech: Very formal; in everyday contexts, use にかかわらず, に関係なく, or を問わず.
- The noun before いかん should express a condition that could vary: ❌ 空の青さのいかんによらず (the blueness of the sky is not a meaningful variable for a legal statement). The pattern requires a variable condition (reason, result, method, circumstances) that is being declared irrelevant.