How to Pronounce Insidious

To pronounce "insidious", say INS-id-ious — 3 syllables, IPA /ɪnˈsɪdi.əs/. Tap play below to hear it in four English accents, or practice it syllable by syllable.

insidious

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Accent

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Speed

Syllable by syllable — tap each one

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Syllables

Letters

/ɪnˈsɪdi.əs/

IPA

💡 Tip for remembering “insidious”

"insidious" has 3 syllables: ins-id-ious. It rhymes with fastidious and invidious, if that helps it stick.

What does insidious mean?

adjective

Producing harm in a stealthy, often gradual, manner.
Intending to entrap; alluring but harmful.
“Hansel and Gretel were lured by the witch’s insidious gingerbread house.”

Hear “insidious” in real sentences

Real example sentences from Tatoeba (CC-BY) — tap to hear each one, or see it used on YouGlish.

Words that rhyme with insidious

Practicing rhymes trains the same ending sounds.

fastidious invidious hideous

Frequently asked questions

How many syllables are in "insidious"?▾

"Insidious" has 3 syllables: ins · id · ious.

What is the IPA transcription of "insidious"?▾

The IPA transcription of "insidious" is /ɪnˈsɪdi.əs/.

What does "insidious" mean?▾

Insidious: Producing harm in a stealthy, often gradual, manner.

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