1. a person who attains or achieves something
Usage: rare in modern usage; more common in historical or formal contexts
2. in law, the act or process of attainting; loss of civil rights as a result of conviction for treason or felony
Usage: archaic; legal/historical

Examples

• She was recognized as an attainer of the highest academic honors.
• The attainer of the goal celebrated with the team.
• In medieval England, attainer resulted in the forfeiture of property and titles.
• The law of attainer was abolished in most jurisdictions during the 19th century.