Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: to remove a stopper from : unstop
unstopper a flask
Recent Examples on the Web
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unstopper.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1860, in the meaning defined above
Keep scrolling for more
Resources for unstopper
Time Traveler for unstopper
See more words from the same year
Comments on unstopper
What made you want to look up unstopper? Please tell us where you read or heard it (including the quote, if possible).
an open space surrounded by woods
Get Word of the Day daily email!
Name that Food Quiz
Can you spell these 10 commonly misspelled words?
Test Your Knowledge - and learn some interesting things along the way.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Impress your friends, annoy your relatives.
Words from the week of 9/14/2018
For frog-tossing, sword dancing, & more
And is one way more correct than the others?
The story of an imaginary word that managed to sneak past our editors and enter the dictionary.
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
Test your knowledge of food and food words.
A quiz in common time.
Build a city of skyscrapers—one synonym at a time.