The DICT Development Group

  Tantrum \Tan"trum\, n.
     1. A whim; an affected air. [Colloq. and archaic]
        --Thackeray.
        [1913 Webster]
  
     2. A display of ill-humor, especially a demonstration of rage
        or frustration by shouting or violent physical movements,
        such as the stamping of feet; called also temper
        tantrum. It is usually associated with children, but is
        sometimes seen in adults.
        [PJC]
  
     3. [fig.] A display of anger expressed by irrationally
        striking out at innocent targets or inanimate objects; as,
        the governor was so insulted by the article, he threw a
        temper tantrum and cancelled the ceremony.
        [PJC]

  tantrum
      n 1: a display of bad temper; "he had a fit"; "she threw a
           tantrum"; "he made a scene" [syn: fit, tantrum,
           scene, conniption]

  19 Moby Thesaurus words for "tantrum":
     cat fit, conniption, conniption fit, convulsion, duck fit,
     eruption, explosion, fit, fit of anger, fit of temper, flare-up,
     fury, outburst, paddy, paroxysm, rage, storm, temper tantrum,
     wax