| half-assed |
| insane |
| crazy(fanatic, dingbat, ultraist) |
| dolt(noun, person, simple, fool, innocent) |
| dunce(noun, simple, fool, stupid, innocent) |
| fool(noun, person, simple, stupid, innocent) |
| ninny(noun, simple, fool, silly, innocent) |
| dimwit(simple, fool, stupid, innocent, sap) |
| dope(simple, fool, stupid, innocent, sap) |
| loon(noun, simple, fool, silly, mad) |
| nincompoop(noun, simple, fool, innocent, jerk) |
| nitwit(noun, simple, fool, stupid, innocent) |
| birdbrain(noun, simple, fool, silly, innocent) |
| blockhead(noun, simple, fool, stupid, innocent) |
| clod(noun, simple, fool, innocent, jerk) |
| dunderhead(noun, simple, fool, silly, innocent) |
| idiot(noun, simple, fool, stupid, innocent) |
| lunatic(noun, person, mad, schizophrenic, worrier) |
| moron(noun, person, simple, fool, innocent) |
| noddy |