Antonyms of noun loser

3 senses of loser

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

Sense 2
failure, loser, nonstarter, unsuccessful person -- (a person with a record of failing; someone who loses consistently)
       Antonym of achiever (Sense 1)
      => 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")

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

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

3 senses of loser

Sense 1
loser, also-ran -- (a contestant who loses the contest)
       => contestant -- (a person who participates in competitions)

Sense 2
failure, loser, nonstarter, unsuccessful person -- (a person with a record of failing; someone who loses consistently)
       => unfortunate, unfortunate person -- (a person who suffers misfortune)

Sense 3
loser -- (a gambler who loses a bet)
       => gambler -- (a person who wagers money on the outcome of games or sporting events)