strongly: P. ἰσχυρῶς, Ar. also P. ἐρρωμένως.
greatly: P. and V. μέγα, μεγάλα, σφόδρα, κάρτα (Plato but rare P.); see greatly.
terribly: P. and V. δεινῶς.
intensely: P. συντόνως, ἰσχυρῶς.