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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