faced adj. stern-visaged, austere, dour, disapproving, frowning, grave, saturnine, solemn, sombre, humourless, grim, forbidding, severe, strait-laced, uncompromising, puritanical, prim, prudish, gruff, bluff, curmudgeonly Despite having a po-faced approach to his work, William has a keen sense of humour when off duty
PO
Meaning of PO in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012