Entry 2 senses · 2 variants Webster, 1913 grouch /(grouch)/ · IPA /ɡɹaʊt͡ʃ/ n. v. i. 01 n. A bad-tempered person. 1. A bad-tempered person. Syn. grump, crank, churl, crosspatch. 02 v. i. to complain habitually, especially about minor or routine annoyances. 1. to complain habitually, especially about minor or routine annoyances. Syn. grumble, gripe.