- Definitions|0
- Thesaurus|470
- Abbreviations|1
| committing perjury(expression, fickle, untrustworthy, unprincipled, dirty-dealing) | |
| confidentially(adverb, covertly) | |
| conspiratorial(adjective, recreant, secretive, sub-rosa, falsehearted) | |
| cortical | |
| cover(adjective, obscure, obscured, ulterior) | |
| covered(adjective, unrecognizable) | |
| covering | |
| crafty(adjective, secretive, conspiratorial) | |
| creep(adjective, secret, spy, covert, undercover) | |
| cretinous(unknowing, hermetical, unbriefed) | |
| crooked(adjective, dishonest, deceitful) | |
| cryptic(adjective, cover, obscure, dark, equivocal) | |
| cunning(adjective, secretive, conspiratorial) | |
| danger | |
| deceitful(adjective, dishonest) | |
| deceptive(adjective, dishonest, deceitful) | |
| deep(adjective, unpublished) | |
| dermal | |
| dermatoid | |
| devious(adjective, dishonest, deceitful) |
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| APA | Smart Define. (2015). under cover thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/under_cover/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "under cover thesaurus" https://smartdefine.org/under_cover/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, under cover thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>. |
| MLA | Smart Define. "under cover thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms> |