unerring
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
οὕτω τι βαθὺ καὶ μυστηριῶδες ἡ σιγὴ καὶ νηφάλιον, ἡ δὲ μέθη λάλον → silence is something profound and mysterious and sober, but drunkenness chatters
not to be avoided: P. and V. ἄφυκτος.
sure: P. and V. ἀσφαλής, βέβαιος.
well-aimed: V. εὔσκοπος, εὔστοχος.
truthful: P. and V. ἀψευδής (Plato).