Home 5-syllable words insidiousness
DICTIONARY ENTRY 5 SYLLABLES

insidiousness

/ɪn'sɪdiəsnɛs/ · ɪnsɪdiəsnɛs

Insidiousness has 5 syllables: in · sid · i · ous · ness.

in
01
sid
02
i
03
ous
04
ness
05

noun. Subtle and cumulative harmfulness (especially of a disease).

noun. The quality of being designed to entrap.

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Syl·la·ble Words A reference for counting syllables in English words. Privacy · Terms · SyllableWords.net — 2026