braggart
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
adj.
Ar. and P. ἀλάζων, P. κομπώδης (Thuc.), V. ὑπέρφρων, ὑψήγορος, στόμαργος, γαῦρος; see boastful.
(Of words), etc.: P. and V. ὑψηλός, P. ὑπέρκοπος.