unintentionally
From LSJ
τὸ δὲ μέλλον ἀκριβῶς οἶδεν οὐδεὶς θνατὸς ὅπᾳ φέρεται → but as for the future no mortal knows for certain where he is bound
P. and V. ἀκουσίως or use P. and V. ἄκων, οὐχ ἑκών agreeing with subject.
to do a thing intentionally: P. and V. ἄκων ποιεῖν τι.