とてつもない

extravagant

Meanings

also 途轍もない

  1. expression, i-adjective, usually in kana extravagant; absurd; unbelievable; preposterous; unreasonable
  2. usually in kana enormous; tremendous; extraordinary; monumental

In sentences

とてつもない間違まちがいをしたものだ。 I have made a tremendous mistake. #200675