- Definitions|1
- Thesaurus|219
- Abbreviations|0
55 entries under adverb topic. ×
| insidiously | |
| insubordinately | |
| underhandedly(dishonestly, deceitfully, fraudulently, untruthfully) | |
| unreliably | |
| unsafely | |
| basely(deceitfully, fraudulently, untruthfully) | |
| craftily | |
| deceptively | |
| dishonourably(deceitfully, fraudulently, untruthfully) | |
| disobediently | |
| factiously | |
| falseheartedly(deceitfully, fraudulently, untruthfully) | |
| feloniously | |
| immorally | |
| insecurely | |
| insincerely | |
| malevolently(deceitfully, fraudulently, untruthfully) | |
| maliciously(deceitfully, fraudulently, untruthfully) | |
| menacingly | |
| misleadingly |
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| APA | Smart Define. (2015). treacherously thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/treacherously/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "treacherously thesaurus" https://smartdefine.org/treacherously/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, treacherously thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/treacherously/thesaurus/synonyms>. |
| MLA | Smart Define. "treacherously thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/treacherously/thesaurus/synonyms> |