PROLONGATION Synonyms: 12 Similar and Opposite Words

prolongation

noun

Definition of prolongation

as in extension

the act of making longer the indefinite prolongation of the ceasefire

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Recent Examples of prolongation Also, ibogaine’s prolongation of the heart’s QT intervals carries a real risk of fatal arrhythmia. — Michelle Lhooq, New Yorker, 7 Aug. 2026 The prolongation was 242 days in 2023 and 346 days in 2024, according to the report. — Steve Sadin, Chicago Tribune, 17 Mar. 2026

Recent Examples of Synonyms for prolongation

extension

Noun

Some of those projects include new sidewalk and crosswalk installations, citywide traffic-calming measures and sidewalk extensions.

— Michelle Marchante, Miami Herald, 3 Oct. 2026
Over time, large-scale replication and extension studies of the marshmallow test with more diverse socioeconomic and racial samples found more nuanced findings.

— Joan M. Cook, Time, 3 Oct. 2026

Definition of extension

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prolong

prolongation

prolongations

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“Prolongation.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/prolongation. Accessed 9 Oct. 2026.

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Synonyms of prolongation

noun

Example Sentences

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