keeping it down (verb) mute: muffle, tone down sound
Sinonime: aciculate, acuate, acuminate, acuminous, acute, apical, barbed, briery, cuspate, cuspidate, edged, fine, ground fine, honed, horned,
jagged,
keen, keen-edged, knife-edged, needle-pointed, needlelike, peaked, pointed, pointy, prickly, pronged, razor-sharp,
salient, serrated, sharp-edged, sharpened, spiked, spiky, spiny, splintery, stinging, tapered, tapering, thorny, tined, tipped, unblunted, whetted
Antonime: blunt, dull