Deadpan
WordNet
adjective
(1) Deliberately impassive in manner
"Deadpan humor"
"His face remained expressionless as the verdict was read"
adverb
(2) Without betraying any feeling
"She told the joke deadpan"
WiktionaryText
Etymology
A compound word formed from the English adjective dead and United States slang word pan (synonymous to “face”).
Adjective
- Deliberately impassive or expressionless (as a face or look).
- Having such a face or look (as a person).
- Impassive (as behaviour or speech).
Noun
deadpan (also deadpan comedy or deadpan humour)
- A style of comedic delivery in which something humourous is said or done while not exhibiting a change in emotion or facial expression.
Verb
- To express (oneself) in an impassive or expressionless manner.