Synonyms of insidious


1. insidious, seductive (vs. unseductive)

usage: beguiling but harmful; "insidious pleasures"

2. insidious, dangerous (vs. safe), unsafe

usage: intended to entrap

3. insidious, pernicious, subtle, harmful (vs. harmless)

usage: working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"

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Definition and meaning of insidious (Dictionary)