Grump
Grump verb - To express dissatisfaction, pain, or resentment usually tiresomely.
Usage example: those incessantly grumping patients were generally ignored by the nursing home staff
Mutter
Mutter verb - To express dissatisfaction, pain, or resentment usually tiresomely.
Usage example: a muttering group of workers
Mutual synonyms
Cite this Source
Mutter and Grump. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/grump/mutter
Grump & Mutter. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/grump/mutter>.
Mutter or Grump. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/grump/mutter.
Google Ngram Viewer shows how "grump" and "mutter" have occurred on timeline