How to say "pretext" in Japanese

Choosing the right word
  • 理由りゆうJLPT N4approx.Common
    nounCovers 'pretext' only marginally: this is the general word for a reason or grounds, fitting contexts where a stated reason doubles as cover; it does not itself imply fabrication — for that, use 口実.
    どうしてあなたにお詫わびする理由りゆうがあるのですか。↗
    Why should I apologize to you?
  • 曰くいわくCommon
    nounIts 'pretext' sense is marginal: the word really denotes a story or history, often left vague, hinting that more lies behind it than is told. Seldom the word you want for an excuse.
    ふふ・・・いわくがあるのさ、あそこには。↗
    He-heh... there's a tale behind that, for that place.
  • 口実こうじつJLPT N2approx.Common
    nounThe word for 'pretext' in its plain sense: an excuse contrived to justify an action, carrying the implication that the stated reason is not the real one.
    彼女かのじょは自分じぶんに不利ふりになるような口実こうじつを彼かれに与あたえた。↗
    She gave him a handle against her.
  • 言いがかりいいがかりCommon
    nounCovers 'pretext' when it means a trumped-up charge: a baseless claim made to blame someone or pick a quarrel, not an excuse for one's own action.
    彼かれはその言いいがかりを否定ひていした。↗
    He denied the accusation.
  • 大義名分たいぎめいぶんCommon
    nounA four-character idiom covering 'pretext' as a lofty justification: a just cause or principle invoked to legitimize an action. It suits sincere appeals to principle, and is used ironically when the cause is hollow.
    ロブソンの提案ていあんは、大義名分たいぎめいぶんがあるからといってテロリストを擁護ようごするようなものである。↗
    Robson's proposal is tantamount to defending terrorists because they have a cause.

Use 口実 for an excuse contrived to cover an action, 「言いがかり」 for a trumped-up charge, 大義名分 for a lofty justification, 理由 when a reason merely doubles as cover, and 「曰く」 mainly for a vague story or past.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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