A person given to finding fault; chronic, captious complainer
One, such as a dog, that growls.
A twist or turn of the mind; caprice; whim; crotchet; also, a fit of temper or passion.
(Informal) A person who is angry, resentful, vindictive, etc., or one easily made so
(Slang) A person who has a gloomy or disagreeable expression or nature
A person who habitually complains or grumbles
One who agitates, especially one who engages in political agitation.
Radical is someone who goes against social norms and who often advocates social change.
A crab is defined as someone who complains.
Find another word for murmurer. In this page you can discover 20 synonyms, antonyms, idiomatic expressions, and related words for murmurer, like: mutterer, complainer, faultfinder, grouch, growler, grumbler, grump, whiner, crank, griper and grouser.