stony
     adj 1: abounding in rocks or stones; "rocky fields"; "stony
            ground"; "bouldery beaches" [syn: {rocky}, {bouldery},
             {bouldered}]
     2: showing unfeeling resistance to tender feelings; "the
        child's misery would move even the most obdurate heart"
        [syn: {flinty}, {obdurate}]
     3: hard as granite; "a granitic fist" [syn: {granitic}, {granitelike},
         {rocklike}]
     [also: {stoniest}, {stonier}]
Source: WordNet® 2.0

stoniest
     See {stony}
Source: WordNet® 2.0