You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
14th century, in the meaning defined above
Middle English, from un- entry 2 + prison
Keep scrolling for more
Time Traveler for unprison
See more words from the same century
Cite this Entry
“Unprison.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unprison. Accessed 25 Jul. 2021.
See Definitions and Examples »
Get Word of the Day daily email!
Difficult Spelling Words Quiz
Test your visual vocabulary with our 10-question challenge!
Spell words. Make bears.
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Top 10 Latin Phrases
Besides 'cute' or 'annoying'
Same sound, very different meaning
Including some trivia on ‘trivia’
A simple trick to keep them separate
How 'literally' can mean "figuratively"
How to use a word that (literally) drives some pe...
The awkward case of 'his or her'
How many can you recall?
Can you avoid these frequent mistakes?
Test your visual vocabulary with our 10-question ...