What is the Latin word for unexpected?

The usual Latin words for “unexpected” are inexspectātus, inopīnātus, necopīnātus; also repentīnus. The right choice depends on the sense; see the distinctions below.

English → Latin

“unexpected” in Latin

inexspectātusunexpected inopīnātusunexpected, unsupposed necopīnātusunexpected repentīnussudden, hasty; unexpected

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

unexpected

inexspectatus: inopinatus (unlooked for; what happens when least expected): necopinatus (hardly presumable, that is hardly looked upon as possible): repentinus (that happens all on a sudden).

Quick answer

What is the Latin word for unexpected?: The usual Latin words for “unexpected” are inexspectātus, inopīnātus, necopīnātus; also repentīnus. 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.