Synonyms for Quiet down:

• n.

  •quiet down (noun)
  • pipe down,
  • quieten,
  • quiesce.

• v.

  •lull (verb)
  • subdue,
  • moderate,
  • still,
  • hush,
  • settle,
  • compose,
  • temper,
  • subside,
  • quiet.

• Other synonyms:

  •Other relevant words:
  • check,
  • shush,
  • unwind,
  • control,
  • curb,
  • simmer down,
  • calm down,
  • settle down,
  • relax,
  • mellow,
  • soften,
  • tone down,
  • shut up.

Antonyms for Quiet down:

• v.

  • lull
    intensify, grow, irritate, upset, win, disturb, raise, extend, incite, excite, enlarge, aggravate, start, energize, continue, arouse, rise, agitate, increase, expand, move, prolong, develop.
  • silence
    release, encourage, permit, communicate, let go, allow, be noisy, talk, help.
  • unwind
    prepare, wind, ready, twist, tangle.