| bougainvillea | |
| breast | |
| button the lips(expression, idiom, taciturnity) | |
| buttoning up(expression, adjective, quiet, silent, taciturn) | |
| cagey(quiet, restrained, discreet) | |
| censorship | |
| chup | |
| chut | |
| clamming up(expression, adjective, quiet, silent, taciturn) | |
| close the lips(expression, idiom, taciturnity) | |
| concealment | |
| confidentiality | |
| cool(dazed, amazed, astonished, thunderstruck, flabbergasted) | |
| cool as cucumber(expression, idiom, silent, dazed, dumb) | |
| daddy | |
| dam | |
| darkness | |
| dazed(awkward, silent, dumb, amazed, astonished) | |
| deaf | |
| deaf and dumb(expression, idiom, aphony) |
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| APA | Smart Define. (2015). mum thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mum/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mum thesaurus" https://smartdefine.org/mum/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, mum thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mum/thesaurus/synonyms>. |
| MLA | Smart Define. "mum thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/mum/thesaurus/synonyms> |