- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
55 entries under adjective topic. ×
| calm | |
| peaceful(behavior, noise, wildness, disturbing) | |
| silent | |
| quiet(rough, public) | |
| tranquil | |
| restrained(verb, quiet) | |
| placid | |
| serene | |
| sedate | |
| subdued(quiet, happy) | |
| imperturbable | |
| noiseless | |
| orderly | |
| soundless | |
| unruffled | |
| staid | |
| Lukewarm | |
| cool | |
| dignified | |
| dispassionate |
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| APA | Smart Define. (2015). boisterous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/boisterous/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "boisterous thesaurus" https://smartdefine.org/boisterous/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, boisterous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/boisterous/thesaurus/antonyms>. |
| MLA | Smart Define. "boisterous thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/boisterous/thesaurus/antonyms> |