Rough; coarse; stout; stiff.Rough and massive; bulky; cumbrous; clumsy.Rough in operation or action; violent; vehement.Rough and stormy: applied to the weather, the waves, etc.Exposed to the turbulence of the elements: as, a boisterous headland; a boisterous passage.Fierce; savage; truculent; full of violence: as, boisterous war.Turbulent; rough and noisy; clamorous: applied to persons or their actions: as, a boisterous man; boisterous merriment; a boisterous game.