un·​stop | \ˌən-ˈstäp \
unstopped; unstopping; unstops

Definition of unstop 

transitive verb

1 : to free from an obstruction : open unstop a drain

2 : to remove a stopper from unstop a flask

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Synonyms & Antonyms for unstop


clear, free, open, unclog, unplug


block, clog (up), close, dam (up), plug (up), stop

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Examples of unstop in a Sentence

the plumber unstopped the drain

Recent Examples on the Web

Hundreds of protesters, who had promised to be a visible presence here and filled several sections of the arena, let out an elated, unstopping cheer. Monica Davey And Julie Bosman, New York Times, "Trump Rally Erupts; Event Called Off," 11 Mar. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unstop.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of unstop

14th century, in the meaning defined at sense 1

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The first known use of unstop was in the 14th century

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Comments on unstop

What made you want to look up unstop? Please tell us where you read or heard it (including the quote, if possible).


to clear from alleged fault or guilt

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