cheekless
/ˈtʃiːklɪs/Definitions
1. adjective
lacking or without cheeks, especially referring to animals
“Some breeds of dogs are naturally cheekless, giving them a unique appearance.”
2. noun
a person who lacks or has little facial fat, particularly around the cheeks
“In medieval art, many of the saints were depicted as cheekless, emphasizing their spiritual austerities.”