- Definitions|2
- Thesaurus|707
- Abbreviations|0
20 entries under mean topic. ×
| underhand(adjective, deceitful, characteristic, cunning, guile) | |
| designing(adjective, cunning, tricky, guile, insidiousness) | |
| stealthy(adjective, sneaky, guile, insidiousness, characteristic) | |
| surreptitious(adjective, sneaky, guile, insidiousness, characteristic) | |
| smooth(adjective, guile, insidiousness, characteristic) | |
| arch(cunning, adjective, characteristic, smooth) | |
| sneaking(adjective, guile, insidiousness, characteristic, tricky) | |
| furtive(adjective, smooth, dishonest, deceitful) | |
| canny(adjective, smooth, sharp, cunning) | |
| secret(adjective, sneaky, characteristic, smooth) | |
| sharp(adjective, smooth, cunning, deceitful) | |
| unscrupulous(adjective, smooth, dishonest, cunning) | |
| delusive(adjective, characteristic, smooth, deception) | |
| dishonorable(adjective, characteristic, smooth, dishonest) | |
| illusory(adjective, characteristic, smooth, deception) | |
| mischievous(adjective, smooth, wicked, cunning) | |
| plotting(adjective, smooth, cunning, knowing) | |
| traitorous(adjective, smooth, dishonest, cunning) | |
| double-dealing(adjective, smooth, dishonest, cunning) | |
| elusive(adjective, smooth, deception, cunning) |
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| APA | Smart Define. (2015). insidious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/insidious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "insidious thesaurus" https://smartdefine.org/insidious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, insidious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/insidious/thesaurus/synonyms>. |
| MLA | Smart Define. "insidious thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/insidious/thesaurus/synonyms> |