WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / E / efficaciously efficaciously adverb /ɛfəkeɪʃəsli/ 5 syllables 13 letters Scrabble 26 WWF 29 Definitions adverb in an effective manner effectively Look “efficaciously” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →