Provable insanity is a legal term used to describe a mental state that renders a person incapable of being held responsible for their actions. However, there are multiple synonyms which can be used to describe this condition. These include terms such as mental illness, insanity defense, cognitive impairment, psychological instability, mental incapacity, and psychiatric disorder. These synonyms are used interchangeably to describe conditions that can impair a person's ability to reason logically, exhibit sound judgement, and control their actions. In any case, if insanity is proven, it can protect an individual from being held liable for their actions. The use of synonyms allows for more precise language when discussing this complex subject matter.