Synonyms of unforeseen

unforeseen

adjective

ˌən-fȯr-ˈsēn 

as in sudden

not expected

there are almost always unforeseen consequences for any major endeavor

unforeseen problems delayed the project beyond its deadline

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Example Sentences

Recent Examples of unforeseen

Yet, there are major lessons here for rival studios in how Warner Bros, post Barbie, has been able to energize social media, and target digital ads, to create an unforeseen blockbuster. —Anthony D'alessandro, Deadline, 7 Apr. 2025

That way, factories can quickly pivot no matter what happens: more tariffs, supply chain disruptions, or another unforeseen event. —Laurent Belsie, Christian Science Monitor, 28 Mar. 2025

This is not unforeseen, and for some time, cybersecurity researchers have been working on the challenge of creating quantum-safe cryptography. —Bernard Marr, Forbes.com, 10 Apr. 2025

When unforeseen circumstances separate Allyson and Willem after their whirlwind day together, they are left to embark on their individual journeys. —Anthony D'alessandro, Deadline, 10 Apr. 2025