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Last Updated :2026/07/25

にわか

Kanji
俄
Hepburn romanization
Pitch accent
Adjectival noun

sudden / abrupt / unexpected / makeshift / hasty / impromptu

The employees could not respond immediately to the sudden policy change.

Meaning Image
にわか

Word Forms

The basic and commonly used forms of this adjectival noun.

Basic forms
Form Word form Usage
Imperfective form (mizenkei)
Alternative: 俄かだろ 俄だろ
Used in forms such as darou.
Continuative form (renyokei)
Alternative: 俄かで 俄で にわかに 俄かに 俄に
Used with de or ni.
Conclusive form (shushikei)
Alternative: 俄かだ 俄だ
Ends a sentence with da.
Attributive form (rentaikei)
Alternative: 俄かな 俄な
Modifies a noun with na.
Conditional form (kateikei)
Alternative: 俄かなら 俄なら
Expresses a condition with nara.
Imperative form (meireikei)
Alternative: 俄かであれ 俄であれ
Used in formal expressions such as de are.
Common forms
Form Word form Usage
Te-form equivalent
Alternative: 俄かで 俄で
Connects clauses using de.
Ta-form
Alternative: 俄かだった 俄だった
Expresses the past with datta.
Nai-form
Alternative: 俄かではない 俄ではない にわかじゃない 俄かじゃない 俄じゃない
Expresses negation with dewa nai or ja nai.
Desu-form
Alternative: 俄かです 俄です
Used for polite speech.
Notes
  • 表記は「にわか」「俄か」「俄」が用いられる。
  • 連用形には、述語接続の「にわかで」と副詞的な「にわかに」がある。

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