Home 4-syllable words effectiveness
DICTIONARY ENTRY 4 SYLLABLES

effectiveness

/ɪ'fɛktɪvnʌs/

Effectiveness has 4 syllables: ef · fec · tive · ness.

ef
01
fec
02
tive
03
ness
04

noun. Power to be effective; the quality of being able to bring about an effect.

noun. Capacity to produce strong physiological or chemical effects.

ADVERTISEMENT leaderboard · 728×90
ADVERTISEMENT medium rectangle · 300×250
Syl·la·ble Words A reference for counting syllables in English words. Privacy · Terms · SyllableWords.net — 2026