
1) Blank expression 2) Drily 3) Dryly 4) Enigmatic 5) Expressionless 6) Incommunicative 7) Uncommunicative 8) Unemotional 9) Unexpressive
Found on
https://www.crosswordclues.com/clue/deadpan

1) Blank look 2) Blankly 3) Deliberately emotionless 4) Expressionless 5) Exclusively Anglo word 6) Exclusively Saxon word 7) Impassive 8) Impassive or expressionless 9) Incommunicative 10) Kind of comic delivery 11) Late to criticise poker face 12) Like Buster Keaton on screen 13) Like much McCain humor
Found on
https://www.crosswordclues.com/clue/deadpan

Deadpan is a form of comic delivery in which humor is presented without a change in emotion or body language. It is usually spoken in a casual, monotone, or cantankerous voice, and expresses a calm, sincere, or grave demeanor, often in spite of the ridiculousness of the subject matter. This delivery is also called dry humor or dry wit, when the in...
Found on
http://en.wikipedia.org/wiki/Deadpan

A specific type of comedic device in which the performer assumes an expressionless (deadpan) quality to her/his face demonstrating absolutely no emotion or feeling. This was a trademark of Buster Keaton's comedic form
Found on
http://www.allmovie.com/glossary/term/deadpan

[
adj] - deliberately impassive in manner 2. [adv] - without betraying any feeling
Found on
http://www.webdictionary.co.uk/definition.php?query=deadpan
expressionless adjective deliberately impassive in manner; `deadpan humor`; `his face remained expressionless as the verdict was read`
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.