出だし抜ぬけ

na-adjective, noun which may take the genitive case particle 'no', noun

sudden; abrupt; unexpected

Describes an action or event that happens without warning, often with a nuance of surprise or lack of preparation. Commonly used as an adverb with に.

• 出だし抜ぬけに雨あめが降ふり出だした。

  Suddenly it started raining.

• 彼かれは出だし抜ぬけに辞じ表ひょうを出だした。

  He abruptly handed in his resignation.