To pronounce "efficacious", say EFF-ic-ac-ious — 4 syllables, IPA /ɛf.ɪ.ˈkeɪ.ʃəs/. Tap play below to hear it in four English accents, or practice it syllable by syllable.
efficacious
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4
Syllables
11
Letters
/ɛf.ɪ.ˈkeɪ.ʃəs/
IPA
"efficacious" has 4 syllables: eff-ic-ac-ious. It rhymes with salacious and audacious, if that helps it stick.
adjective
“This medicine is efficacious.”
Practicing rhymes trains the same ending sounds.
"Efficacious" has 4 syllables: eff · ic · ac · ious.
The IPA transcription of "efficacious" is /ɛf.ɪ.ˈkeɪ.ʃəs/.
Efficacious: Effective; possessing efficacy.
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