Synonyms of pokerfaced

1 Syllable
blank, dead, dull
2 Syllables
serious, vacuous, stupid, wooden, fish-eyed, empty, deadpan, stolid, vacant
3 Syllables
lackluster, straight-faced, long-faced, unsmiling, lusterless
4 Syllables
inscrutable, impassive, poker-faced, unhumorous
5 Syllables
unexpressive, inexpressive