理直气壮 (理直氣壯) lǐ zhí qì zhuàng

lǐ zhí qì zhuàng set phrase in the right and selfconfident
Domain: Idiom 成语
Notes: (CC-CEDICT '理直氣壯'; CCI '理直氣壯', p. 52; Guoyu '理直氣壯')