noun, adjectival noun or quasi-adjective

  1. coolness, calmness, composure, unconcern.

adjectival noun or quasi-adjective

Colloquialism.
  1. all right, fine, OK, okay.

Variations

Pronunciation Kanji Kana Is Common
平気 へいき

Contained Kanji Breakdown

even, flat, peace
ヘイ たいら ひら (3rd, N3)
dry, parch, ebb
ひ.る カン ほ.す (6th, N2)
to divide
spirit, mind, air
キ き ケ (1st, N5)
spirit, steam radical (no. 84)
キ ケ いき (Kentei 1)
person(人) variant
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
mow, cut grass, subdue
ガイ ゲ おさ.める (Kentei 1)