σιγᾶν ἄμεινον ἢ λαλεῖν ἃ μὴ πρέπει → it's better to keep silence than to say what's not appropriate (Menander)
ἄρκιος, ἀξιόχρεως, διαρκής, μενοεικής, ἀρκετός, ἐξαρκής, ἐπαρκής, ἀγαπητός, ἀγαπατός, μέτριος, ἄξιος, ἱκανός, φερέγγυος