粵典 (words.hk)香港詞
理直氣壯,有道理喺手 (righteously; justifiably; legitimately; with good reason; often (but not always) used sarcastically or negatively to refer to people doing unreasonable things while thinking they are in the right)
副詞用例
佢明明遲出門所以遲到,仲大條道理賴個巴士司機揸車揸得慢。
He left late and therefore arrived late, but he just blamed the bus driver for driving slowly.