| half-assed |
| blockheaded(adjective, dull, slow, stupid) |
| dense(adjective, dull, simple, slow, stupid) |
| dull(adjective, slow, stupid, sluggish, unintelligent) |
| dumb(adjective, dull, simple, slow, stupid) |
| stupid(adjective, dull, simple, slow, unintelligent) |
| foolish |
| thickheaded |
| addled(adjective, simple, slow, stupid, boring) |
| backward(adjective, simple, slow, stupid, boring) |
| besotted(adjective, simple, slow, stupid, boring) |
| blockish |
| blunderheaded |
| brainless(adjective, simple, slow, stupid, boring) |
| daffy(adjective, simple, slow, stupid, boring) |
| daft(adjective, simple, slow, stupid, boring) |
| dim-witted(adjective, simple, slow, stupid, boring) |
| doltish(adjective, dull, simple, slow, stupid) |
| feeble-minded(adjective, simple, slow, stupid, boring) |
| half-baked(adjective, simple, slow, stupid, boring) |