JLPT N3 · い-adjective

とんでもない (tondemonai)

とんでもない is a Japanese い-adjective meaning “unthinkable; unexpected”. It appears in JLPT N3 vocabulary lists and is marked as a common word in JMdict.

Reading
とんでもない
Romaji
tondemonai
Word class
い-adjective
Level
JLPT N3 (unofficial)

Meaning

  1. unthinkable; unexpected; absurd; outrageous; preposterous · い-adjective
  2. absolutely not!; far from it!; impossible!; preposterous!; what a thing to say! · interjection
  3. (it was) no bother at all; not at all; don't mention it · interjection

Example sentences

ジャックが音楽が苦手なんてとんでもない、それどころか、ピアノを弾くのがうまい。
It isn't true that Jack is no good at music; on the contrary, he plays the piano well.
「君はそれを終えたか」「とんでもない、始めたばかりだ」
"Have you finished it?" "On the contrary, I've just begun."

Sentences from the Tatoeba project, linked to this word in JMdict.

Conjugation of とんでもない

い-adjective. Plain and polite forms below; try any other word in the Japanese verb conjugator.

FormJapaneseReading
Presentとんでもないとんでもない tondemonai
Negativeとんでもなくないとんでもなくない tondemonakunai
Pastとんでもなかったとんでもなかった tondemonakatta
Negative pastとんでもなくなかったとんでもなくなかった tondemonakunakatta
Te-formとんでもなくてとんでもなくて tondemonakute
Adverb (~ku)とんでもなくとんでもなく tondemonaku
Conditional (~ba)とんでもなければとんでもなければ tondemonakereba

Source: JMdict entry 1008790 (EDRDG, CC BY-SA 4.0). Level: unofficial JLPT list – how levels are assigned.