Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
: one that unmasks
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:
1605, in the meaning defined above
Keep scrolling for more
Resources for unmasker
Time Traveler for unmasker
See more words from the same year
Comments on unmasker
What made you want to look up unmasker? Please tell us where you read or heard it (including the quote, if possible).
playful or foolish behavior
Get Word of the Day daily email!
Autumn Words of the Day 2018
Test your visual vocabulary with our 10-question challenge!
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!
New words that came from bigger words
A cavalcade of words for travel
Two words. One hundred years.
Words from the week of 11/9/2018
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'
(Secret October WOTD Quiz)
Name that government! Or something like that.
Do you know the person or title these quotes describe?