ならいざしらず
ならいざしらず
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naraizashirazuPotential, Possibility
Yuzuo Chan
|
11.06.2025
Meaning
A may be understandable or acceptable, but B (a more extreme or different case) is not. Used to say 'leaving A aside, B is a problem or is surprising'.
Conjugation
(A)N + ならいざしらず + (B): (A)Vplain + ならいざしらず + (B)
Examples
Show translation
子供ならいざ知らず、大人がそんなわがままを言うのは恥ずかしい。
昔はいざ知らず、今は徹夜なんてとても無理だ。
冬ならいざしらず、真夏にコートを着ている人はいない。
友達の家ならいざ知らず、取引先の前でそんな格好はできない。
初心者ならいざ知らず、プロがこんな基本的なミスをするとは信じられない。
一人で行くならいざ知らず、小さな子供を連れて山に登るのは危ない。
grammarDetailPage.commonMistakes.title
grammarDetailPage.commonMistakes.wrong: 日常会話ならいざ知らず、専門的な文章を日本語で読むのはかなり難しいだ。
grammarDetailPage.commonMistakes.correct: 日常会話ならいざ知らず、専門的な文章を日本語で読むのはかなり難しい。
grammarDetailPage.commonMistakes.why: An い-adjective cannot take だ. Also note the logic: A (everyday conversation) is the manageable case, and B (reading specialized texts) is the harder one.
grammarDetailPage.commonMistakes.wrong: 私は彼のことはいざ知らず、とても好きだ。
grammarDetailPage.commonMistakes.correct: 他の人ならいざ知らず、彼がそんなことをするとは信じられない。
grammarDetailPage.commonMistakes.why: The pattern does not mean 'I don't know about A'. It sets a tolerable A against a surprising or unacceptable B, and B is usually a negative or critical judgement.
grammarDetailPage.commonMistakes.wrong: 大人ならいざ知らず、子供がそんなことをするのは恥ずかしい。(intending: it's shameful for an adult)
grammarDetailPage.commonMistakes.correct: 子供ならいざ知らず、大人がそんなことをするのは恥ずかしい。
grammarDetailPage.commonMistakes.why: A must be the case where the behavior is acceptable and B the case where it is not. Reversing them breaks the logic.
Key points
A is a contrasting case where the situation would be natural or acceptable. The speaker's real point is B, which is usually a critical or surprised judgement such as 'unacceptable', 'unthinkable' or 'difficult'. It is formal, often written, and different from ともかく ('setting A aside'), which does not imply that A is acceptable. N はいざ知らず is often used with time words such as 昔はいざ知らず.
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