British, informal
1
: having a serious expression on the face
a po-faced police officer
2
: too serious
the writer's po-faced [=humorless] style
Cite this Entry
“Po-faced.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/po-faced. Accessed 18 Jun. 2026.
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