SAT TOEFL bumptious Definition Offensively self-assertive or conceited. Example "His bumptious attitude made it hard for others to work with him." Sign in to save SAT PDF — $25 TOEFL PDF — $25 ← bumper bunch → Study tips featuring "bumptious" TOEFL Academic Vocabulary: Study by Topic How Context Clues Save You on the SAT Related words SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal