P. and V. ἡσυχῆ, ἡσύχως (rare P.), Ar. and V. ἀτρέμα (rare P.), Ar. and P. ἀτρέμας, ἡρέμα (Plato).
peacefully, without care: P. and V. ἀπραγμόνως (Euripides, Fragment).