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English to English adjective
| 1 |
Lying in wait; watching an opportunity to insnare or entrap; deceitful; sly; treacherous; -- said of persons; as, the insidious foe. |  | source: webster1913 adjective satellite
| 2 |
beguiling but harmful | | Example: insidious pleasures
source: wordnet30
| 3 |
intended to entrap | | source: wordnet30
| 4 |
working or spreading in a hidden and usually injurious way | | Example: glaucoma is an insidious disease
a subtle poison
source: wordnet30
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