Antonyms of adj festive

1 sense of festive

Sense 1
gay, festal, festive, merry -- (offering fun and gaiety; "a festive (or festal) occasion"; "gay and exciting night life"; "a merry evening")

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

Similarity of adj festive

1 sense of festive

Sense 1
gay, festal, festive, merry -- (offering fun and gaiety; "a festive (or festal) occasion"; "gay and exciting night life"; "a merry evening")
       => joyous (vs. joyless) -- (full of or characterized by joy; "felt a joyous abandon"; "joyous laughter")