Stupid: (1)Someone who lacks common sense (2)or something, perhaps an idea, needs improvement.
Idiot: One who can not be capable of ordinary reasoning.
Idiotic: One who acts incapable of ordinary reasoning.
handicap: Someone who is mentally challenged; lack of intelligence.
handicapped: (1)Someone who is capable of being mentally challenged. (2)Something, perhaps an idea, needs improvement. (this was copied from the top because, well, it had same meaning)
Example Sentence:
I, Jacky, was stupid(1) for lying to the the community that I was 19, and female.