τεκμαιρόμενοι προκατηγορίας οὐ προγεγενημένης → deducing from the fact that there was no previous accusation
P. and V. ἄβουλος, Ar. and P. ἀνόητος, P. ἀπερίσκεπτος, V. ἄκριτος; see rash, foolish.
off one's guard: P. and V. ἀφύλακτος, ἄφρακτος.