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

Viard’s tenure brought record sales but Blazy’s contribution has been to restore a sense that Chanel’s familiar ingredients can produce something unexpected. — ABC News, 6 Oct. 2026

Not every blister or color change indicates infection, so ask the treating clinician to assess unexpected symptoms. — Malana Vantyler, Miami Herald, 6 Oct. 2026

Low primary turnout can also lead to unexpected results – and these results can create misleading perceptions of the election. — Robert Boatright, The Conversation, 6 Oct. 2026

From the footage Devynn shared, the peeing was an unexpected part of the celebration. — Sean Joseph Outkick, FOXNews.com, 6 Oct. 2026