Source : WordNet®

crustiest
     See {crusty}

crusty
     adj 1: having a hardened crust as a covering [syn: {crusted}, {encrusted},
             {crustlike}]
     2: brusque and surly and forbidding; "crusty remarks"; "a
        crusty old man"; "his curmudgeonly temper"; "gruff
        manner"; "a gruff reply" [syn: {curmudgeonly}, {gruff}, {ill-humored},
         {ill-humoured}]
     [also: {crustiest}, {crustier}]