理直气壮

Explanation: Direct: correct and reasonable; fierce: a vigorous momentum. The right reasons sufficient momentum to speak Sheng 　　Usage: Joint type; as predicate, attributive, adverbial; with compliment 　　Source: Ming Feng Meng, "Yu Shiming words," Volume 31: "I went to Yan Luodian have mentioned before, I also justifiably, afraid even of." 　　Examples: He stated the ~ what happened. Thesaurus:  in black and white, witness conclusive, flood, Plausibly, mutter incantations, Taotao not absolutely, There will hear recorded, severity in speech and fairness in principal, Stated rightly, speak plausibly and at length, Torrential Inexhaustible, a flow of eloquence Antonym Group:  investigation reveals no evidence, It did not root