ἀναγκαστῶς
From LSJ
οὕτω τι βαθὺ καὶ μυστηριῶδες ἡ σιγὴ καὶ νηφάλιον, ἡ δὲ μέθη λάλον → silence is something profound and mysterious and sober, but drunkenness chatters
English (Strong)
adverb from a derivative of ἀναγκάζω; compulsorily: by constraint.
English (Thayer)
adverb, by force or constraint; opposed to ἑκουσίως, Plato, Ax., p. 366a.)
Russian (Dvoretsky)
ἀναγκαστῶς: Plat. = ἀναγκαστικῶς.