Antonym: gainer. Similar words: closer, encloser, lose, close, closet, lose out, closed, lose it. Meaning: ['luːzə(r)] 
n. 1. a contestant who loses the contest 2. a person with a record of failing; someone who loses consistently 3. a gambler who loses a bet.
n. 1. a contestant who loses the contest 2. a person with a record of failing; someone who loses consistently 3. a gambler who loses a bet. 
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1. He's a good / bad loser .
2. You're never a loser until you quit trying.
3. He is a sore loser.
4. He's extremely competitive and a bad loser.
5. Nobody likes a sore loser.
6. The loser sat slumped in dejection.
7. Oh(sentencedict .com), give him the push - he's a loser.
8. The loser will be out of the tournament.
9. You are a very bad loser Lou, aren't you?
10. He's a bad loser .
11. The loser had to chug-a-lug his drink.
12. The referee's decision was contested by the loser.
13. The guy's a born loser .
14. The latest price rises mean that the real loser, as usual, is the consumer.
15. The film company thought they'd backed a loser until the film won an Oscar.
16. He's a born loser.
17. The main loser was the United Left(sentencedict.com), which lost eight seats.
18. You're just a bad loser Phil, that's your problem.
19. Lamarck has an undeserved reputation as a loser.
20. The government was not to be a real loser.
21. A winner, obviously, until he became a loser.
22. Who will be the loser in this business?
23. The big loser is the last generation.
24. Losing makes you think of yourself as a loser.
25. The good loser never makes it to the winner's rostrum of any worthwhile competition.
26. I'm sure the prime minister will turn out to be a good loser.
27. Disappointment was writ large on the face of the loser.
28. It is upsetting to discover that you have backed a loser.
29. They've only been trained to compete with other men, so a successful woman can make them feel like a real loser.
30. She was determined to show the world that she was no loser.
More similar words: closer, encloser, lose, close, closet, lose out, closed, lose it, close up, close to, enclose, closely, close off, close in, closest, close down, close-set, lose face, enclosed, disclose, close-knit, be close to, cellulose, disclosed, closeness, a close call, lose heart, close at hand, closed loop, close shave.