(たい)したことない

たいしたことない
expression
not a big deal; nothing special; not serious
1. not a big deal; nothing special; nothing significant
Used to downplay the importance, severity, or impressiveness of something.
(たい)したことないよ。
It's no big deal.
けがは(たい)したことなかったので安心(あんしん)した。
The injury wasn't serious, so I was relieved.
最初(さいしょ)心配(しんぱい)したけど、調(しら)べてみたら(たい)したことなかった。
I was worried at first, but when I looked into it, it turned out to be nothing serious.

(たい)したことない is a colloquial expression composed of (たい)した (great, significant) + こと (thing) + ない (not). It is very commonly used in everyday conversation to minimize the significance of something.

USAGE:
In more polite speech, the は particle is inserted: (たい)したことはない or (たい)したことはありません. The plain form (たい)したことない is used in casual conversation.

COMMON PATTERNS:

  • (たい)したことないよ: casual reassurance ("it's nothing")
  • (たい)したことはありません: polite form
  • (たい)したことなさそう: it doesn't seem like a big deal
  • (べつ)(たい)したことない: it's not particularly significant

RELATED EXPRESSIONS:

  • (たい)したものだ: that's really something; impressive — the positive counterpart
  • (たい)したことがある: it's significant; there's something serious

SIMILAR WORDS:

  • 大丈夫(だいじょうぶ): it's okay; it's fine — reassurance about a situation rather than minimizing importance
  • (なん)でもない: it's nothing — dismisses something completely
  • 些細(ささい)な: trivial; minor — a more literary equivalent