perfectly
From LSJ
ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
English > Greek (Woodhouse)
adverb
altogether: P. and V. πάντως, παντελῶς, Ar. and P. πάνυ, τελέως, P. ὅλως, παντάπασι, V. εἰς τὸ πᾶν; see altogether.
irreproachably: P. and V. ἀμέμπτως (Xen.).