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insidious
01
designed to lure, ensnare, or catch someone in a deceitful way
Examples
The spy set an insidious trap for his target.
The scam was insidious, built to trick the elderly.
02
gradually causing harm without being obvious at first
Examples
The insidious erosion of trust damaged the team.
Stress often has insidious effects on the body.
03
(of illnesses or conditions) progressing unnoticed until advanced
Examples
Diabetes can be insidious, showing no symptoms for years.
The insidious cancer spread before doctors detected it.
Lexical Tree
insidiously
insidiousness
insidious
