Unware

Part of speech: adjective (a.)

1. Unaware; not foreseeing; being off one's guard. [Obs.] Chaucer. Fairfax.

2. Happening unexpectedly; unforeseen. [Obs.] The unware woe of harm that cometh behind. Chaucer. -- Un*ware"ly, adv. [Obs.] -- Un*ware"ness, n. [Obs.]