splintery

brittle crisp flimsy frail

crispy crumbly delicate fracturable fragile frangible friable shatterable shattery vitreous weak

firm flexible strong

durable sturdy unbreakable

aciculate acuate acuminate acuminous acute apical barbed briery cuspate cuspidate edged fine gnawing ground fine honed horned jagged keen keen-edged knife-edged lancinating needle-pointed needlelike peaked piercing pointed pointy prickly pronged razor-sharp salient serrated sharp-edged sharpened shooting spiked spiky spiny stabbing stinging tapered tapering thorny tined tipped unblunted whetted

aciculate acuate acuminate acuminous acute apical barbed briery cuspate cuspidate edged fine gnawing ground fine honed horned jagged keen keen-edged knife-edged knifelike needle-pointed needlelike peaked piercing pointed pointy prickly pronged razor-sharp salient serrated sharp-edged sharpened shooting spiked spiky spiny stabbing stinging tapered tapering thorny tined tipped unblunted whetted

acute pointed razor-sharp sharpened stinging

fine keen salient tapering

aciculate acuate acuminate acuminous apical barbed briery cuspate cuspidate edged ground fine honed horned jagged keen-edged knife-edged needle-pointed needlelike peaked pointy prickly pronged serrated sharp-edged spiked spiky spiny tapered thorny tined tipped unblunted whetted

blunt dull

acuminate barbed edged fine gnawing honed horned jagged keen peaked piercing pointed serrated sharpened shooting spiked stinging tapered tapering tined tipped whetted

aciculate acuate acuminous acute apical briery cuspate cuspidate ground fine keen-edged knife-edged knifelike lancinating needle-pointed needlelike pointy prickly pronged razor-sharp salient sharp-edged spiky spiny thorny unblunted

blunt dull smooth