adjective: Alternative form of deadpan [Deliberately impassive or expressionless.]
adverb: Alternative form of deadpan [In a deadpan manner.]
noun: Alternative form of deadpan [A style of comedic delivery in which something humorous is said or done while not exhibiting a change in emotion or facial expression.]
verb: Alternative form of deadpan [To express (oneself) in an impassive or expressionless manner.]