1
enorgullecerse;pavonearse;vanagloriarse
1
to put on airs;to act big;to throw one's weight about;to be overbearing;to be domineering;to be bossy;to be pushy;to be proud;to be haughty;to be arrogant;to swagger;to boast;to brag
あの人はあまり威張るから好きになれない。
That man is too boastful for my liking.
Other forms
意張る 【いばる】 (search-only kanji form)