平気
Common
I-adj
Noun
1
adjectival nouns or quasi-adjectives (keiyodoshi)noun (common) (futsuumeishi)
cool;calm;composed;unconcerned;nonchalant;unmoved;indifferent
彼は平気でうそをつく。
He has no scruples about lying.
2
adjectival nouns or quasi-adjectives (keiyodoshi)
colloquial
all right;fine;OK;okay