残のこさず

adverb

all; entirely; completely; without exception

Adverbial form of 残す (to leave behind), meaning 'without leaving anything behind' → 'all, entirely'. Often used with verbs like 食べる, 使う, 話す to emphasize completeness.

See also: 残らず

• 料りょう理りを残のこさず食たべた。

  I ate all of the food without leaving any.

• 彼かれは自じ分ぶんの考かんがえを残のこさず話はなした。

  He spoke his thoughts completely, without holding anything back.