いかん

いかん
noun
how; in what way; depending on
1. how; in what way; the state of things
A formal word meaning "how" or "in what manner." Used to refer to the nature or state of something, often in combination with particles to create grammatical patterns.
結果(けっか)のいかんを()わない。
Regardless of the outcome.
(こと)のいかんによっては対策(たいさく)(こう)じる。
Depending on the circumstances, we will take measures.
2. depending on; regardless of
When combined with specific particles, creates fixed patterns meaning "depending on" (〜いかんで/いかんによって) or "regardless of" (〜いかんにかかわらず/いかんによらず).
(こと)のいかんによっては対策(たいさく)(こう)じる。
Depending on the circumstances, we will take measures.
成績(せいせき)のいかんに(かか)わらず全員(ぜんいん)参加(さんか)だ。
Everyone participates regardless of their grades.
今後(こんご)対応(たいおう)いかんで結果(けっか)()わる。
The outcome will change depending on the response going forward.
理由(りゆう)のいかんを()わず、遅刻(ちこく)(みと)められない。
Tardiness is not permitted regardless of the reason.
努力(どりょく)いかんで結果(けっか)(おお)きく()わる。
The results change greatly depending on one's effort.

A formal, literary word written in hiragana. Can also be written as 如何(いかん) using kanji, though hiragana is more common in modern usage. Functions as a noun but is almost always used in fixed grammatical patterns.

KEY PATTERNS:

  • 〜のいかんを()わず: regardless of (very formal)
  • 〜のいかんに(かか)わらず: regardless of (formal)
  • 〜のいかんによらず: regardless of (formal)
  • 〜いかんで: depending on
  • 〜いかんによっては: depending on (the case)
  • 〜いかんにかかわらず: regardless of

SIMILAR WORDS:

  • 〜にかかわらず: regardless of — more common, less formal version
  • 次第(しだい)で: depending on — everyday equivalent of 〜いかんで
  • 〜を()わず: regardless of — similar pattern but without いかん
  • 〜によって: depending on — the standard neutral equivalent

REGISTER:
Formal to very formal. Common in legal documents, official announcements, business communications, and news. Rarely used in casual conversation.