Synonyms: tempered, toughened, treated, hardened
Definition: made hard or flexible or resilient especially by heat treatment
Usage: a sword of tempered steel; tempered glass
Similar words: curable
Definition: capable of being hardened by some additive or other agent
Similar words: sunbaked
Definition: baked or hardened by exposure to sunlight; not burned
Usage: sunbaked adobe bricks
Definition: physically toughened
Usage: the tough bottoms of his feet
Similar words: thickened, callous, calloused
Definition: having calluses; having skin made tough and thick through wear
Usage: calloused skin; with a workman's callous hands
Similar words: hardened, enured, inured
Definition: made tough by habitual exposure
Usage: hardened fishermen; a peasant, dark, lean-faced, wind-inured- Robert Lynd; our successors...may be graver, more inured and equable men- V.S.Pritchett
Similar words: weather-beaten
Definition: tanned and coarsened from being outdoors
Usage: a weather-beaten face