飛んだ (Tonda) is a Japanese pre-noun adjectival meaning “unexpected, unlikely, strange, terrible”.
Meanings
- pre-noun adjectivalunexpected; unlikely; strange
- pre-noun adjectivalterrible; awful; horrible; serious; outrageous
- adverbvery; extremely
Examples
証人喚問はとんだ騒ぎになってしまいました。
The confirmation hearings turned into a free-for-all.
Sentences from Tatoeba (CC BY 2.0 FR).