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

Gowman said Rayns’ death was unexpected, coming after a short period of no contact that had raised concerns among friends and family for his welfare. — Naman Ramachandran, Variety, 8 July 2026

Wun, who is based in London, has become an unexpected runaway couture hit. — José Criales-Unzueta, Vanity Fair, 8 July 2026

To combat this, Cline said, firefighters are working from the existing roads in the area to keep crews and the public safe from unexpected danger. — Emily Carmela Nelson, Idaho Statesman, 7 July 2026

Small businesses also could face unexpected surcharges from insurance companies if the number of workers who enroll increases too much. — Bob Herman, STAT, 7 July 2026