spontaneous
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
English > Greek (Woodhouse)
adj.
Automatic, acting of itself: P. and V. αὐτόματος.
Voluntary: P. and V. ἑκούσιος, αὐθαίρετος, αὐτεπάγγελτος.