バテる

ばてる
ichidan verb
to be exhausted; to be worn out; to be beat
1. to be exhausted; to be worn out; to be beat
To become extremely tired, especially from physical exertion or heat.
もうバテた。
I'm already exhausted.
(あつ)さでバテている。
I'm worn out from the heat.
マラソンの後半(こうはん)でバテてしまった。
I got worn out in the second half of the marathon.

バテる may come from "batter" (as in exhausting oneself through repeated effort) or from ()てる (to reach the end/be exhausted). It's particularly associated with summer heat exhaustion ((なつ)バテ).

REGISTER:
This is a casual/colloquial verb. In formal contexts, use 疲労(ひろう)する or (つか)()る.

COMMON PATTERNS:

  • (なつ)バテ: summer fatigue/heat exhaustion
  • バテ気味(ぎみ): feeling somewhat exhausted
  • バテている: to be in an exhausted state

ASPECT ({ている}):
バテている indicates an ongoing state of exhaustion.