ἡ γὰρ σιωπὴ τοῖς σοφοῖσιν ἀπόκρισις → silence, you see, is an answer for the wise (Menander)
adv.
Calmly: P. and V. ἡσυχῆ, ἡσύχως (rare P.), Ar. and V. ἀτρέμα (rare P.), Ar. and P. ἀτρέμας.
Peacefully, without care: P. and V. ἀπραγμόνως (Eur., Frag.).