Insidious
Channel: English Unpacked
Date: 2023-11-30

Insidious is an adjective that describes something that is gradual, subtle, and harmful. It refers to something that spreads or develops in a sneaky or deceptive way, often causing damage or harm without being noticed immediately. It can also be used to describe an idea, influence, or behavior that is harmful or dangerous but not easily recognized or understood at first.