Dict: strongs - unable
Strongs:
G101 @ ἀδυνατέω adunateō ad-oo-nat-eh'-o From G102; to be unable that is (passively) impossible: - be impossible.
G102 @ ἀδύνατος adunatos ad-oo'-nat-os From G1 (as a negative particle) and G1415; unable that is weak (literally or figuratively); passively impossible: - could not do impossible impotent not possible weak.