Ὑπὸ γὰρ λόγων ὁ νοῦς μετεωρίζεται ἐπαίρεταί τ' ἄνθρωπος → Borne up by words, the mind soars aloft, and we reach the heights (Aristophanes, Birds 1447f.)
clumsy: P. and V. σκαιός, Ar. and P. ἄγροικος, V. ἀμήχανος.
uneducated: P. and V. ἄμουσος, ἀμαθής, Ar. and P. ἀπαίδευτος.
embarrassing: P. and V. ἄπορος ἀμήχανος (rare P.), Ar. and P. χαλεπός.