All words
word

Insidious

Ih-NSIH-dee-uhs

/ˌɪˈnsɪˌdiːʌs/

Listen

Hear it in a clear American voice. Slow it down to catch each syllable.

Syllable breakdown

insidious

Dictionary meaning

Working or spreading in a hidden and usually injurious way.

Examples

  • Glaucoma is an insidious disease.
  • Insidious pleasures.

Synonyms: pernicious, subtle

People also look up

Ephemeral

ih-FEM-er-ul

Mellifluous

muh-LIF-loo-us

Perspicacious

pur-spi-KAY-shus

Obsequious

uhb-SEE-kwee-us

Learn one new pronunciation a day

Get a word, name or idiom like “Insidious” in your inbox — daily or weekly, free. Unsubscribe any time.

Something wrong? Suggest a correction