- Definitions|0
- Thesaurus|470
- Abbreviations|1
| foresworn(fickle, untrustworthy, unprincipled, dirty-dealing) | |
| foxy(adjective, sly, fraudulent) | |
| fraudulent(adjective, sly) | |
| furtively(adverb, clandestine, underhandedly, incognito) | |
| groundward | |
| guarded(adjective, cover, obscure, dark, equivocal) | |
| guileful(adjective, secretive, conspiratorial) | |
| hermetic(adjective, obscure, dark, unseen) | |
| hermetical(adjective, obscure, dark, isolated, unknowing) | |
| hermit-like(isolated, reclusive, uncompanionable) | |
| hermitic(isolated, reclusive, uncompanionable) | |
| hermitical(isolated, reclusive, uncompanionable) | |
| hermitlike(isolated, reclusive, uncompanionable) | |
| hole-and-corner(adjective, secret, spy, covert, recreant) | |
| hot-headed(unknowing, hermetical, unbriefed) | |
| hugger-mugger(adjective, quiet) | |
| huggermugger(adverb, show) | |
| hushed(adjective, taciturn, uncommunicative) | |
| hypogeal(adjective, subterranean) | |
| hypogean(adjective, subterranean) |
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| APA | Smart Define. (2015). under cover thesaurus. Retrieved September 26, 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 26, 2026). |
| Harvard | Smart Define 2015, under cover thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/under_cover/thesaurus/synonyms>. |
| MLA | Smart Define. "under cover thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/under_cover/thesaurus/synonyms> |