Antonyms of adj triumphal

1 of 2 senses of triumphal

Sense 2
exultant, exulting, jubilant, prideful, rejoicing, triumphal, triumphant -- (joyful and proud especially because of triumph or success; "rejoicing crowds filled the streets on VJ Day"; "a triumphal success"; "a triumphant shout")

INDIRECT (VIA elated) -> dejected -- (affected or marked by low spirits; "is dejected but trying to look cheerful")

Similarity of adj triumphal

2 senses of triumphal

Sense 1
triumphal -- (relating to or celebrating a triumph; "a triumphal procession"; "a triumphal arch")

Sense 2
exultant, exulting, jubilant, prideful, rejoicing, triumphal, triumphant -- (joyful and proud especially because of triumph or success; "rejoicing crowds filled the streets on VJ Day"; "a triumphal success"; "a triumphant shout")
       => elated (vs. dejected) -- (exultantly proud and joyful; in high spirits; "the elated winner"; "felt elated and excited")