friable

fragile, frangible, brittle, crisp, friable mean breaking easily. fragile implies extreme delicacy of material or construction and need for careful handling <a fragile antique chair>. frangible implies susceptibility to being broken without implying weakness or delicacy <frangible stone used for paving>. brittle implies hardness together with lack of elasticity or flexibility or toughness <brittle bones>. crisp implies a firmness and brittleness desirable especially in some foods <crisp lettuce>. friable applies to substances that are easily crumbled or pulverized <friable soil>.