1. A blank, expressionless face.
2. A person, especially a performer, who has or assumes a blank expression.
Impassively matter-of-fact, as in style, behavior, or expression: deadpan delivery of the joke.
With a blank, expressionless face.
v. dead·panned, dead·pan·ning, dead·pans
To express in an impassive, matter-of-fact way.
To express oneself in an impassive, matter-of-fact way.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.