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

Key Takeaways The experiment revealed an unexpected way to manipulate the weak magnetism inside an atomic nucleus.

— Neetika Walter, Interesting Engineering, 28 Oct. 2026
Still, something unexpected may force you to try a different method, schedule, or approach that ends up working better.

— Tarot.com, Hartford Courant, 28 Oct. 2026