(とうてい)

とうてい
adverb
(not) possibly; (cannot) by any means; utterly
1. (not) possibly; (cannot) by any means; utterly impossible
Emphasizes that something is absolutely impossible or cannot be achieved under any circumstances. Almost always used with negative predicates.
この(りょう)到底(とうてい)一人(ひとり)では()べきれない。
There's no way I can eat this amount by myself.
(かれ)行動(こうどう)到底(とうてい)理解(りかい)できない。
His actions are utterly beyond my comprehension.
()()りまでに到底(とうてい)()()わない。
There's no way we'll make it by the deadline.

USAGE:
到底(とうてい) + NEGATIVE predicate

This adverb almost always appears with negative forms (〜ない, 〜できない, etc.) to emphasize impossibility.

COMMON PATTERNS:

  • 到底(とうてい)〜できない (absolutely cannot ~)
  • 到底(とうてい)〜ない (there's no way ~)
  • 到底(とうてい)無理(むり)だ (utterly impossible)
  • 到底(とうてい)(しん)じられない (cannot possibly believe)

NUANCE:
Conveys a strong sense of impossibility—the speaker is emphatic that something cannot happen under any circumstances. More formal than simply saying できない.

SIMILAR EXPRESSIONS:

  • とても〜ない - Cannot possibly ~ (similar, slightly less emphatic)
  • 絶対(ぜったい)に〜ない - Absolutely will not ~
  • どうしても〜ない - No matter what, cannot ~