Definition of Gratulatory

Adjective: gratulatory  'gra-chu-lu,to-ree [N. Amer], gra-tyû-lu-t(u-)ree [Brit]

  1. Expressive of sympathetic pleasure or joy on account of someone's success or good fortune
    "a gratulatory address";
    - congratulatory

See also:
gratulations
graupel