shī​tài

gaffe

失态 (失態) shī​tài
gaffe verb
to forget one's manners or act in an unseemly way in a social situation

He lost his composure while drunk at a formal banquet and behaved very rudely.

lose composure verb
to lose self-control or forget oneself due to intense pressure or emotion

Faced with continuous questioning from reporters, the normally calm official actually lost his composure in public.

Frequency

Movie subtitles
1.79 per million appears in 1% of films
Written text
1.74 per million

Sources

Definitions
CC-CEDICT