Insidious

adjective

/ɪnˈsɪdi.əs/

Word Frequency: 1.6

Definitions

1.adjectiveProducing harm in a stealthy, often gradual, manner.

2.adjectiveIntending to entrap; alluring but harmful.

"Hansel and Gretel were lured by the witch’s insidious gingerbread house."

3.adjectiveTreacherous.

"The battle was lost due to the actions of insidious defectors."

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