Adjective: triumphal trI'úm-ful
- Relating to or celebrating a triumph
"a triumphal procession"; "a triumphal arch"
- Joyful and proud especially because of triumph or success
"a triumphal success";
- exultant, exulting, jubilant, prideful, rejoicing, triumphant
See also: cock-a-hoop [informal], elated, gleeful, gleesome [archaic], joyful, jubilant, on top of the world [informal]