straight face
noun
a serious or impassive facial expression that conceals one's true feelings about something, especially a desire to laugh.
Origin of straight face
First recorded in 1890–95
OTHER WORDS FROM straight face
straight-faced, adjective straight-fac·ed·ly [streyt-fey-sid-lee, -feyst-lee] /ˈstreɪtˈfeɪ sɪd li, -ˈfeɪst li/, adverbWords nearby straight face
British Dictionary definitions for straight face
straight face
noun
a serious facial expression, esp one that conceals the impulse to laugh
Derived forms of straight face
straight-faced, adjectiveIdioms and Phrases with straight face
straight face
see keep a straight face.