思おもい上あがり

noun

conceit; hubris; vanity; presumption

Describes an attitude of thinking too highly of oneself, often leading to arrogance or overconfidence.

• 彼かれの思おもい上あがりには本ほん当とうに腹はらが立たつ。

  His conceit really gets on my nerves.

• 成せい功こうした途と端たんに思おもい上あがりが出でてしまった。

  As soon as he succeeded, he became conceited.