Princeton's WordNet

1. game(noun)

   a contest with rules to determine a winner

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   fearful, cowardly, fit

2. game(noun)

   a single play of a sport or other contest

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   fearful, fit, cowardly

3. game(noun)

   an amusement or pastime

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   cowardly, fit, fearful

4. game(noun)

   animal hunted for food or sport

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   fit, fearful, cowardly

5. game(noun)

   (tennis) a division of play during which one player serves

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   fit, fearful, cowardly

6. game(noun)

   (games) the score at a particular point or the score needed to win

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   cowardly, fearful, fit

7. game(noun)

   the flesh of wild animals that is used for food

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   cowardly, fit, fearful

8. plot, secret plan, game(noun)

   a secret scheme to do something (especially something underhand or illegal)

   Synonyms:
   secret plan, plot of ground, biz, plot, patch, plot of land, game

   Antonyms:
   fit, fearful, cowardly

9. game(noun)

   the game equipment needed in order to play a particular game

   Synonyms:
   secret plan, biz, plot

   Antonyms:
   cowardly, fearful, fit

10. game, biz(noun)

    your occupation or line of work

    Synonyms:
    secret plan, biz, plot, game

    Antonyms:
    cowardly, fearful, fit

11. game(adj)

    frivolous or trifling behavior

    Synonyms:
    secret plan, biz, plot

    Antonyms:
    fit, cowardly, fearful

12. crippled, halt, halting, lame, gimpy, game(adj)

    disabled in the feet or legs

    Synonyms:
    mettlesome, crippled, halt, spirited, lame, halting, gamy, gritty, feeble, gamey, spunky, gimpy, game

    Antonyms:
    fearful, fit, cowardly

13. game, gamy, gamey, gritty, mettlesome, spirited, spunky(verb)

    willing to face danger

    Synonyms:
    spirited, lame, zippy, spicy, granulose, high, gamy, racy, spunky, gimpy, juicy, feisty, blue, mettlesome, coarse-grained, crippled, risque, granular, mealy, bouncy, naughty, gamey, halting, gritty, peppy, enlivened, halt, grainy, bouncing, farinaceous, plucky, game

    Antonyms:
    fit, fearful, cowardly

14. bet on, back, gage, stake, game, punt(verb)

    place a bet on

    Synonyms:
    second, bet on, gage, back, adventure, plump for, impale, support, pole, plunk for, game, post, hazard, venture, indorse, stake, jeopardize, punt, endorse, back up

    Antonyms:
    cowardly, fearful, fit