Antonyms of noun winner

2 of 3 senses of winner

Sense 1
winner, victor -- (the contestant who wins the contest)
       Antonym of loser (Sense 1)
      => loser, also-ran -- (a contestant who loses the contest)

Sense 2
winner -- (a gambler who wins a bet)
       Antonym of loser (Sense 3)
      => loser -- (a gambler who loses a bet)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun winner

3 senses of winner

Sense 1
winner, victor -- (the contestant who wins the contest)
       => contestant -- (a person who participates in competitions)

Sense 2
winner -- (a gambler who wins a bet)
       => gambler -- (a person who wagers money on the outcome of games or sporting events)

Sense 3
achiever, winner, success, succeeder -- (a person with a record of successes; "his son would never be the achiever that his father was"; "only winners need apply"; "if you want to be a success you have to dress like a success")
       => person, individual, someone, somebody, mortal, soul -- (a human being; "there was too much for one person to do")