offensively self-assertive or conceited
WordReference Random House Learner's Dictionary of American English © 2026
bump•tious /ˈbʌmpʃəs/USA pronunciation
adj.
bump•tious•ness, n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2026- conceited;
self-important.
bump•tious•ness, n. [uncountable]
bump•tious
(bump′shəs),USA pronunciation adj.
bump′tious•ly, adv.
bump′tious•ness, n.
- offensively self-assertive:a bumptious young upstart.
- bump + (frac)tious 1795–1805
bump′tious•ness, n.
- pushy, forward, cocky, cheeky, brash.
Collins Concise English Dictionary © HarperCollins Publishers::
'bumptious' also found in these entries (note: many are not synonyms or translations):