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

To find out which plants are native to your area, call the extension program at your local state university or visit Homegrown National Park, a nonprofit organization with information about creating backyard habitats.

— Karen Hugg, Washington Post, 11 Oct. 2026
The recent Houthi escalation, however, is increasingly seen as an extension of Iran’s conflict with Washington.

— Mostafa Salem, CNN Money, 11 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 19 Oct. 2026.

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Synonyms of prolongation

noun

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