- abuse of a right; unlawful use of an office, franchise, benefit, etc.
Origin of misuser1
1615–25; noun use of Middle French mesuser to misuse
- a person who misuses.
Origin of misuser2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- law an abuse of some right, privilege, office, etc, such as one that may lead to its forfeiture
- (often in combination) a person who regularly abuses alcohol, drugs, etcheroin misusers
C17: from Old French mesuser (infinitive used as noun)