ghastly

adj.

[1]	dreadful , grim , grisly , awful , terrible , gruesome , macabre , terrifying , frightful , sick , hideous , horrible , horrendous , horrid , horrifying , grim , grisly , loathsome , gruesome , ugly , repellent , repulsive , shocking , appalling , (Colloq) gross , scary
[2]	grim , charnel , sepulchral , cadaverous , haggard , ashen , wan , pale , pallid , pasty(-faced) , drawn , livid , ghostly , spectral , macabre
[3]	awful , bad , terrible , ill , ailing , sick