By accident, abruptly, and accidentally are all synonyms for unawares. Prepared, knowingly, and deliberately are antonyms of unawares. And here are 27 another word for unawares.
Abruptly, accidentally, by accident, by mistake, by surprise, cold, in all innocence, in flagrante delicto, in flagrante, in the act, inadvertently, napping, off-guard, on the hop, red-handed, suddenly, unconsciously, unexpectedly, unintentionally, unknowingly, unprepared, unwittingly, with one's trousers/pants down, without noticing, without warning, and mistakenly are all synonyms for unawares.
Unawares synonym page has a variety of synonyms that differ in length. 1 synonym with 4, 7, 18, and 25 letters and 5 synonyms with 8 letters. 2 synonyms with 9, 12, 13, 14, and 15 letters and 3 synonyms with 10, and 11 letters. For a total of 25 another word for unawares.
The cat pounced on him unawares.
She arrived at the party unawares.
He caught her unawares while studying.
They walked into trouble unawares today.