unstopper

[ uhn-stop-er ]
/ ʌnˈstɒp ər /

verb (used with object)

to unstop.

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Origin of unstopper

First recorded in 1830–40; un-2 + stopper
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for unstopper