DICT.TW Dictionary Taiwan

 dead·pan /ˈdɛdˌpæn/
 無表情的臉(a.)無表情的臉(ad.)無表情的(v.)無表情地說

 deadpan
      adj : deliberately impassive in manner; "deadpan humor"; "his face
            remained expressionless as the verdict was read" [syn:
            expressionless, impassive, poker-faced, unexpressive]
      adv : without betraying any feeling; "she told the joke deadpan"