SAT GRE TOEFL IELTS invincible Definition Impossible to defeat or overcome. Example "The champion felt invincible after winning ten matches in a row." Sign in to save SAT Quiz → GRE Quiz → TOEFL Quiz → IELTS Quiz → ← invigorate inviolable → Study tips featuring "invincible" Spot the Vocabulary Trap in Every Question Audit Your Own Writing to Find Gaps Write GRE Words Into Your Own Sentences 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