Anything noisy is loud. Your noisy party probably won't go over too well with your downstairs neighbors — especially if it's late on a Tuesday night and they have a sleeping baby.

Something that makes loud sounds or is generally rowdy and boisterous can be called noisy. A noisy bar is a harder place to have a conversation than a quiet restaurant, but a noisy dance party tends to me much more fun than a solemn tea party with your cranky grandparents. Before there was noisy, around the late 1600s, the adjective was noiseful. Curiously, experts guess that the Latin root of noisy and noise is nausea, "seasickness."

Definitions of noisy
  1. adjective
    full of or characterized by loud and nonmusical sounds
    “a noisy cafeteria”
    “a small noisy dog”
    cacophonic, cacophonous
    having an unpleasant sound
    characterized by or producing sound of great volume or intensity
    blatant, clamant, clamorous, strident, vociferous
    conspicuously and offensively loud; given to vehement outcry
    abuzz, buzzing
    noisy like the sound of a bee
    clanging, clangorous
    having a loud resonant metallic sound
    having a hard nonresonant metallic sound
    a rattling sound as of hard things striking together
    creaky, screaky
    having a rasping or grating sound
    rackety, rip-roaring, uproarious
    uncontrollably noisy
    reedy, wheezy
    having a tone of a reed instrument
    of breathing having a heavy snoring sound
    resembling a sustained `sh' or soft whistle
    sounding like thunder
    like the sound of rapidly vibrating wings
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    free of noise or uproar; or making little if any sound
    inaudible, unhearable
    impossible to hear; imperceptible by the ear
    (of sound) relatively low in volume
    making no sound
    silent, soundless, still
    marked by absence of sound
    (poetic) still or calm
    walking on the tips of ones's toes so as to make no noise
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  2. adjective
    attracting attention by showiness or bright colors
    “a noisy sweater”
    colorful, colourful
    striking in variety and interest
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