murmur

1 to express dissatisfaction, pain, or resentment usually tiresomely no prisoner dared murmur out loud Synonyms beef, bellyache, bitch, bleat, carp, caterwaul, crab, croak, fuss, gripe, grizzle, grouch, grouse, growl, grumble, grump, holler, inveigh, keen, kick, kvetch, maunder [chiefly British], moan, complain, mutter, nag, repine, scream, squawk, squeal, wail, whimper, whine, whinge [British], yammer, yawp (or yaup), yowlRelated Words object (to), protest, quarrel (with); cavil, quibble; fret, stew, worry; blubber, cry, sob; bemoan, bewail, deplore, lamentNear Antonyms accept, bear, countenance, endure, take, tolerate; applaud, cheer, commendAntonyms crow, delight, rejoice

2 to speak softly and unclearly a college professor who tends to murmur Synonyms chunter [British], grunt, mouth, mumble, mutterRelated Words babble, blab, chatter, drivel, gabble, gibber, jabber, maunder, prattle, ramble; breathe, gasp, pant, whisper; buzzNear Antonyms articulate, enunciateAntonyms speak out, speak up