Synonyms
Antonyms
Etymology

1. insidious

adjective. ['ˌɪnˈsɪˌdiːəs'] working or spreading in a hidden and usually injurious way.

Synonyms

  • harmful
  • subtle

Antonyms

  • innocuous
  • nontoxic
  • benign

Etymology

  • insidiosus (Latin)
  • -osus (Latin)

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Words that Rhyme with Insidious

  • fastidious
  • invidious
  • hideous

How do you pronounce insidious?

Pronounce insidious as ˌɪnˈsɪˌdiəs.

US - How to pronounce insidious in American English

UK - How to pronounce insidious in British English

Example sentences of the word insidious


1. Adjective
Far more insidious, however, is the potential for these glues to leak formaldehyde into your home.

Quotes containing the word insidious


1. That's the thing about depression: A human being can survive almost anything, as long as she sees the end in sight. But depression is so insidious, and it compounds daily, that it's impossible to ever see the end.
- Elizabeth Wurtzel, Prozac Nation

2. Particularity leads to peculiarity and then to pathological behavior. The three Ps. It is very insidious. You would eventually end up in a box. If you try to control your environment, it will control you. And everyone else around you will always have to be making adjustments to your maddening idiosyncracies...You are beginning to enslave yourself with your fussiness.
- Susan Trott

3. You do not give your precious body to the billy clubs of Birmingham sheriffs, nor to the insidious activity of the streets.
- Ta-Nehisi Coates, Between the World and Me

2. insidious

adjective. ['ˌɪnˈsɪˌdiːəs'] intended to entrap.

Synonyms

  • dangerous

Antonyms

  • wholesome
  • advantageous

Etymology

  • insidiosus (Latin)
  • -osus (Latin)

3. insidious

adjective. ['ˌɪnˈsɪˌdiːəs'] beguiling but harmful.

Antonyms

  • constructive

Etymology

  • insidiosus (Latin)
  • -osus (Latin)
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