Making or given to making a lot of noise.
synonyms: rowdy, clamorous, boisterous, turbulent, uproarious, riotous, rambunctious, rackety; chattering, talkative, vociferous, shouting, screaming, loud, fortissimo, blaring, booming, overloud, deafening, thunderous, tumultuous, clamorous, ear-splitting, piercing, strident, cacophonous, raucous
"a bučan, giggling group of children"
"a bučan crowd"
"bučan scenes outside the court building"
"Damn, that lawnmower is bučan!"