- Definitions|0
- Thesaurus|1.1k
- Abbreviations|0
| self-contained | |
| severe(adjective, stern, uncompromising) | |
| shadowy | |
| shocked(silent, dazed, dumb, astonished, thunderstruck) | |
| standoffish(reserved, reticent, taciturn) | |
| subdued(quiet, soft, low) | |
| tacit | |
| tasteful(quiet, soft, low) | |
| thunderstruck(silent, dazed, dumb, astonished, flabbergasted) | |
| tightlipped(adjective, taciturn) | |
| timid | |
| unapproachable(reserved, reticent, taciturn) | |
| uncommunicable(adjective, taciturn) | |
| under cover(expression, taciturn, uncommunicative) | |
| underground | |
| unflappable(astonished, thunderstruck, flabbergasted) | |
| unobtrusive(adjective, close, quiet, soft, low) | |
| unrevealing | |
| uptight(quiet, restrained, discreet) |
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| APA | Smart Define. (2015). tight-lipped thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tight-lipped/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tight-lipped thesaurus" https://smartdefine.org/tight-lipped/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, tight-lipped thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tight-lipped/thesaurus/synonyms>. |
| MLA | Smart Define. "tight-lipped thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/tight-lipped/thesaurus/synonyms> |