Synonyms of unexpected

unexpected

adjective

ˌən-ik-ˈspek-təd 

as in sudden

not expected

the failure of the backup generator was unexpected and a contingency for which we weren't prepared

Synonyms & Similar Words

• sudden
• unanticipated
• unforeseen
• abrupt
• unlooked-for
• unlikely
• unplanned
• improbable
• surprising
• startling
• unintended

Antonyms & Near Antonyms

• anticipated
• expected
• foreseen
• predicted
• unsurprising
• prophesied

Example Sentences

Recent Examples of unexpected

If your dog lives to age 12, that adds up to roughly $35,184 over their lifetime, and that's before accounting for major medical expenses or other unexpected costs. — Maddie Rhodes, USA Today, 19 Aug. 2026

Through grief, migration and unexpected encounters, the film explores identity, belonging and the healing power of nature. — Leo Barraclough, Variety, 19 Aug. 2026

Receiving an unexpected debt collection call during the workday can create more than an awkward interruption. — Angelica Leicht, CBS News, 19 Aug. 2026

Sophie also bent royal beauty protocol with an unexpected manicure. — Lara Walsh, InStyle, 19 Aug. 2026