Definition of "pantywaist" in English

adjective

1. (informal, especially of a male person) Weak, timid, effeminate, ineffectual.

   • His rough, burly father was mortified by the lad's pantywaist behavior.

noun

1. (informal, dated) An undergarment composed, in part, of panties attached to a waistband.

2. (informal, derogatory) An ineffectual, weak, or timid person, especially a boy or young man; a sissy.