adjective
- lacking a motive or reason; done without apparent cause or purpose
Examples
- The police were baffled by the motiveless attack on the stranger.
- His motiveless cruelty toward animals disturbed everyone who knew him.
- The vandalism appeared to be completely motiveless.
- She committed what seemed like a motiveless crime.
- The motiveless destruction of the artwork shocked the community.
- Investigators could find no explanation for the motiveless violence.