Synonyms of witless in English:

witless


See US English definition of witless

See UK English definition of witless

See Spanish definition of tonto

adjective

1‘a witless youth’

SYNONYMS
foolish, stupid, unintelligent, idiotic, brainless, mindless, imbecilic, imbecile
fatuous, inane, immature, childish, puerile, half-baked, empty-headed, half-witted, slow-witted, weak-minded, doltish
informal crazy, loopy, brain-dead, cretinous, thick, thickheaded, birdbrained, pea-brained, pinheaded, dopey, dim, dim-witted, dippy, blockheaded, boneheaded, lamebrained, chuckleheaded, dunderheaded, wooden-headed, muttonheaded, damfool
British informal daft, divvy, scatty, dotty
Scottish, Northern English informal glaikit
North American informal dumb-ass, chowderheaded
South African informal dof
West Indian informal dotish

2‘I was bored witless’

SYNONYMS
out of one's mind, to death, to tears, silly, stupid, sick