n. 1) When a usual physical or mental functions are prevented from a condition. Typically, this refers to a permanent lack of function, but can be temporary. People with disabilities should be accommodated and encouraged to perform at their maximum potential. Society and the law gives disables the right to participate in governmental and societal activities without hindrances. Many states require special arrangements such as access to ramps, elevators and special parking designations. 2) Legal impediment such as being underage and cannot make a contract, or being incompetent or insane.