Antonyms of adj jubilant

2 senses of jubilant

Sense 1
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")

Sense 2
elated, gleeful, joyful, jubilant -- (full of high-spirited delight; "a joyful heart")

INDIRECT (VIA joyous) -> joyless -- (not experiencing or inspiring joy; "a joyless man"; "a joyless occasion"; "joyless evenings")

Similarity of adj jubilant

2 senses of jubilant

Sense 1
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")

Sense 2
elated, gleeful, joyful, jubilant -- (full of high-spirited delight; "a joyful heart")
       => joyous (vs. joyless) -- (full of or characterized by joy; "felt a joyous abandon"; "joyous laughter")