SAT GRE TOEFL effectual Definition Adequate to accomplish a purpose; successful. Example "The manager took effectual steps to resolve the conflict." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → ← effectiveness effeminate → Study tips featuring "effectual" Spot the Vocabulary Trap in Every Question Write GRE Words Into Your Own Sentences TOEFL Academic Vocabulary: Study by Topic Related words SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal SAT abominable