adv. 25B6; adverb
brigands caught them unawares : BY SURPRISE, unexpectedly, without warning, suddenly, abruptly, unprepared, off-guard; informal with one's trousers down, napping; Brit. informal on the hop.
the roach approached the pike unawares : UNKNOWINGLY, unwittingly, unconsciously; unintentionally, inadvertently, accidentally, by mistake.
prepared, knowingly.