Efficacious

//ˌɛf.ɪˈkeɪ.ʃəs//

Pronunciation

US //ˌɛf.ɪˈkeɪ.ʃəs//
US //ˌɛf.əˈkeɪ.ʃəs//
US //ˌef.əˈkæɪ.ʃəs//
US
Syllables: 4
Phonemes: EH2 F AH0 K EY1 SH AH0 S

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.