1. Relating to or celebrating a triumph
   "a triumphal procession"; "a triumphal arch" 
2. Joyful and proud especially because of triumph or success
   "a triumphal success"
   - exultant, exulting, jubilant, prideful, rejoicing, triumphant

See also: elated, triumph

• order Gymnophiona
• order Haemosporidia
• order Haplosporidia
• order Heliozoa
• order Helotiales
• order Hemiptera
• order Heterosomata
• order Heterotrichales
• order Hymenogastrales
• order Hymenoptera
• order Hypericales
• order Hypermastigina
• order Hypocreales
• order Hyracoidea
• order Ichthyosauria
• order Ictodosauria
• order Insectivora
• order Insessores
• order Isoetales
• order Isopoda
• order Isoptera
• order Isospondyli
• order Juglandales
• order Jungermanniales
• order Lagomorpha