Efficacious

"Efficacious" in Russian

де́йственный

déjstvennyj

(effective — see also effective)

эффекти́вный

effektívnyj

(effective — see also effective)

← See all translations for "efficacious"

More for "efficacious"

MeaningPronunciationSentencesSynonyms

Next best steps

DefinitionSynonymsSentencesRead the blog

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