Antonyms of adj rip-roaring

1 sense of rip-roaring

Sense 1
rackety, rip-roaring, uproarious -- (uncontrollably noisy)

INDIRECT (VIA noisy) -> quiet -- (free of noise or uproar; or making little if any sound; "a quiet audience at the concert"; "the room was dark and quiet")

Similarity of adj rip-roaring

1 sense of rip-roaring

Sense 1
rackety, rip-roaring, uproarious -- (uncontrollably noisy)
       => noisy (vs. quiet) -- (full of or characterized by loud and nonmusical sounds; "a noisy cafeteria"; "a small noisy dog")