UNFORESEEN Synonyms: 17 Similar and Opposite Words

unforeseen

adjective

ˌən-fȯr-ˈsēn

Definition of unforeseen

as in sudden

not expected there are almost always unforeseen consequences for any major endeavor unforeseen problems delayed the project beyond its deadline

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Example Sentences

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Recent Examples of unforeseen With a concept that is like a twisted version of The Parent Trap, director Trudie Styler‘s sly comedy with drama shows what happens when the messy unforeseen circumstances of life and death interrupt a nasty divorce. — Pete Hammond, Deadline, 17 Sep. 2026 Services must keep running despite delays, connectivity failures, hardware problems and other unforeseen events such as severe weather. — Miroslav Katsarov, Forbes.com, 10 Sep. 2026 Fate can also take a hand, with unforeseen developments bolstering one combatant’s negotiating position. — John R. Bolton, Washington Post, 9 Sep. 2026 Trial runs were executed to ensure nothing unforeseen would happen. — Mark Rice-Oxley, Christian Science Monitor, 4 Sep. 2026 See All Example Sentences for unforeseen

Recent Examples of Synonyms for unforeseen

Adjective

This is not a sudden shift in attitude to defend a controversial CBA.

— Lev Akabas, Sportico.com, 20 Oct. 2026
In addition to low blood oxygen levels and low blood pressure, a pulmonary embolism can affect the heart, causing a fast or irregular heart rate, right-sided heart failure or sudden cardiac arrest.

— Jen Christensen, CNN Money, 20 Oct. 2026

Definition of sudden

Adjective

Prince Harry is opening up about his and wife Meghan Markle’s unexpected decision earlier this year to move back to the United Kingdom years after their dramatic fallout with the British royal family.

— Alexandra Del Rosario, Los Angeles Times, 21 Oct. 2026
The tropical getaway also included some unexpected entertainment.

— Danielle Minnetian, FOXNews.com, 20 Oct. 2026