neurotic
psychoneurotic
mental case

It seemed impossible that a mental case could be so.

That is why I prefer not to class him as a mental case.

There he called the medical major who was in charge of the hospital where the pitiful mental cases had been taken.

"You think some mental case might be mixed up in this deal?"

She will hear herself called a liar and a mental case by the President's agents.

Was she perhaps a mental case of some kind ?

She must take me for a mental case, he thought.

A place to stick mental cases you can't handle at home.

She couldn't have played Blanche except as a total mental case.

And if you had, you'd know she was nothing more than a mental case who should never have been let out of the hospital.