What is the Latin word for unawares?

The usual Latin words for “unawares” are inopīnātus, imprōvīsus, īnspērātus. The right choice depends on the sense; see the distinctions below.

English → Latin

“unawares” in Latin

inopīnātusunexpected, unsupposed imprōvīsusunforeseen, unexpected; sudden īnspērātusunhoped-for, unexpected; unforeseen

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

unawares

praeter opinionem: (ex) inopinato: improviso: (ex) insperato. To attack anybody unawares, aliquem improviso or aliquem imprudentem adoriri.

Quick answer

What is the Latin word for unawares?: The usual Latin words for “unawares” are inopīnātus, imprōvīsus, īnspērātus. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.