Learn it from the priest
Mnemonic - inside pious temple sly and crafty priest
Word - insidious
a) crafty and sly, treacherous, stealthy
b) working or spreading harmfully in a stealthy manner;
Part of Speech - adjective
Synonyms - cunning, astute, corrupt
Antonyms - sincere, honest, trustworthy
1 Snow White was not aware of the insidious plans of her evil stepmother.
2 The reason for her success in politics was her skill of hiding her insidious intent with politeness.
3 We are becoming more greedy under the insidious influence of advertisements.
4 The insidious nature of the virus makes it deadly. It may grow inside you for weeks before the body detects it and shows symptoms.
5 What some may call as political correctness is believed by many to be an insidious form of censorship.
6 I'm aware of the insidious ways the credit card companies use to empty our wallet.