foolish
From LSJ
adj.
Of persons or things: P. and V. μωρός, μῶρος, εὐήθης, ἠλίθιος (Eur, Cycl. 537). ἀσύνετος, ἄβουλος, ἀμαθής, Ar. and P. ἀνόητος, ἀβέλτερος, V. κενόφρων.
Of persons only: P. and V. ἄνους, ἄφρων, σκαιός, V. κακόφρων.
foolish talk, subs.: Ar. and P. λῆρος, ὁ, φλυαρία, ἡ.