dead-pan

/D EH1 D P AE0 N/
noun
  1. 1

    A style of comedic delivery in which something humorous is said or done while not exhibiting a change in emotion or facial expression.

verb
  1. 1

    To express (oneself) in an impassive or expressionless manner.

adjective
  1. 1

    Deliberately impassive or expressionless.

  2. 2

    Having such a face or look.

    โ€œThe comedian remained deadpan.โ€

  3. 3

    Impassive.

Synonyms

adverb
  1. 1

    In a deadpan manner.

Source: https://en.wiktionary.org/wiki/dead-pan, https://en.wiktionary.org/wiki/deadpan