| languish(verb, idle, fret, sulk, pine) | |
| lay(verb, oppose, criticize, object, protest) | |
| lecture | |
| look askance(verb, expression, oppose, criticize, object) | |
| lose heart(expression, idle, sulk, languish, brood) | |
| moon(verb, idle, sulk, languish, pine) | |
| mussitate | |
| niggle(verb, criticize, complaint, cavil, nitpick) | |
| peal | |
| pine(idle, sulk, languish, brood, pout) | |
| pine away(expression, idle, sulk, languish, brood) | |
| pout(verb, idle, sulk, languish, pine) | |
| protestation | |
| pule(verb, protest, cry, complain, moan) | |
| quaver(sound, pattern, thunder, ruffle, reverberate) | |
| quibble(complain, moan) | |
| racket(noun, rumble) | |
| rag | |
| raise objections(expression, idiom) | |
| reboation |
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| APA | Smart Define. (2015). grumble thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/grumble/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "grumble thesaurus" https://smartdefine.org/grumble/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, grumble thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/grumble/thesaurus/synonyms>. |
| MLA | Smart Define. "grumble thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/grumble/thesaurus/synonyms> |