Source : WordNet®

spiny
     adj : having or covered with protective barbs or quills or spines
           or thorns or setae etc.; "a horse with a short bristly
           mane"; "bristly shrubs"; "burred fruits"; "setaceous
           whiskers" [syn: {barbed}, {barbellate}, {briary}, {briery},
            {bristled}, {bristly}, {burred}, {burry}, {prickly}, {setose},
            {setaceous}, {thorny}]
     [also: {spiniest}, {spinier}]

spiniest
     See {spiny}