47 entries under expression topic. ×
| clamming up(adjective, quiet, silent, taciturn) | |
| close the lips(idiom, taciturnity) | |
| cool as cucumber(idiom, silent, dazed, dumb) | |
| deaf and dumb(idiom, aphony) | |
| dried up(quiet, restrained, discreet) | |
| female parent | |
| hold one's jaw(idiom, taciturnity) | |
| hold one's peace(idiom, taciturnity) | |
| hold one's tongue(idiom, taciturnity) | |
| keep a secret(idiom, taciturnity) | |
| keep mum(idiom, taciturnity) | |
| keep one's counsel(idiom, taciturnity) | |
| keep silence(idiom, taciturnity) | |
| make no sign(idiom, taciturnity) | |
| mammary gland | |
| mum's the word(idiom, taciturnity) | |
| not saying boo(idiom, silent, dazed, dumb) | |
| not speak(idiom, taciturnity) | |
| not speaking | |
| not talkativ(quiet, soft, silent) |
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| APA | Smart Define. (2015). mum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/mum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, mum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>. |
| MLA | Smart Define. "mum thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms> |