misuser

One that misuses.

The use of the powers conferred upon a corporation in an unlawful manner or in contravention of its established purpose.

One who misuses; one who uses incorrectly.

In law, abuse of any liberty or benefit such as may cause its forfeiture.

One who misuses.

Unlawful use of a right; use in excess of, or varying from, one’s right.

A person who misuses something.

unlawful use of a right; use in excess of, or varying from, one’s right