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

Regularly reflecting on how past changes have led to unforeseen benefits can also enhance this ability. —Caroline Castrillon, Forbes, 25 Mar. 2025

Given the ease with which researchers can create false childhood memories, one of the unforeseen consequences of these changes is that falsely recovered memories of abuse might find their way into court – potentially leading to unfounded accusations and wrongful convictions. —Gabrielle Principe, The Conversation, 24 Mar. 2025

Barring something unforeseen happening between now and Opening Day on March 27, Hicks will be on the Marlins’ roster despite never playing about the Double A level in the minors. —Jordan McPherson, Miami Herald, 19 Mar. 2025

Barring unforeseen developments, Arizona will carry out its first execution since 2022 on Wednesday. —Jeremy Duda, Axios, 18 Mar. 2025