Thesaurus.com
Dictionary.com
Showing results for insidious. Search instead for insidiousn.
Definitions

insidious

[in-sid-ee-uhs] / ɪnˈsɪd i əs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s a subtle shift where “treat yourself” moments — like frequent dinners out or luxury upgrades — slowly morph into consistent, insidious monthly expenses.

From MarketWatch • Apr. 7, 2026

It’s a push that is far more systematic and insidious than we are giving them credit for.

From Los Angeles Times • Apr. 5, 2026

An Italian authority is investigating beauty brands Benefit and Sephora after they appeared to adopt a "particularly insidious" marketing strategy of using young influencers to market skincare to children.

From BBC • Mar. 29, 2026

"The cold is a very insidious enemy, it should not be underestimated," she said.

From Barron's • Feb. 16, 2026

“It's an insidious plan, if I do say so myself.”

From "Fahrenheit 451" by Ray Bradbury