adjective

(of a person) stupid; idiotic.

a doltish character

stupid,idiotic,moronic,imbecilic,foolish,ignorant,simple,simple-minded,dense,brainless,mindless,dull-witted,dull,slow-witted,witless,half-witted,dunce-like,slow,cretinous,empty-headed,vacuous,vapid,gullible,naive,thick,dim,dopey,dumb,dozy,birdbrained,pea-brained,pig-ignorant,bovine,slow on the uptake,soft in the head,brain-dead,boneheaded,lamebrained,chuckleheaded,dunderheaded,wooden-headed,fat-headed,muttonheaded,daft,not the full shilling,thick as two short planks,dumb-ass