Word Study
deadpan
WORDNET DICTIONARY
Adjective deadpan has 1 sense
- deadpan(s = adj.all) expressionless, impassive, poker-faced, unexpressive - deliberately impassive in manner; "deadpan humor"; "his face remained expressionless as the verdict was read"
Adverbial deadpan has 1 sense
OXFORD DICTIONARY
deadpan, adj. & adv. with a face or manner totally lacking expression or emotion.
THESAURUS
deadpan
blank, cold-bloodedly, coldheartedly, coldly, dispassionately, empty, expressionless, fishy, glassy, heartlessly, impassive, in cold blood, inexpressive, poker-faced, spiritlessly, unemotionally, unexpressive, unfeelingly, unpassionately, vacant, with dry eyes, wooden
For further exploring for "deadpan" in Webster Dictionary Online