One who loses.
- One that fails to win: the losers of the game.
- One who takes loss in a specified way: a graceful loser; a poor loser.
- One that fails consistently, especially a person with bad luck or poor skills: "losers at home seeking wealth and glory in undeveloped countries” ( Arthur M. Schlesinger, Jr.)
- One that is bad in quality: That book is a real loser.