Simple past tense and past participle of callus.(verb)
Having calluses.(adjective)
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Use "callused" in a sentence
"A muscular, taciturn man with callused hands and a sunburned face, Hart normally pounds rock for oil or water."
""He came off the court with a sore shoulder, his hand was callused, he has never had to work so hard," said Donna McKennon, Max's mother, after her son lost a two-hour, 45-minute match."
"He had the ragged look she recognized as Vegas having run somebody down - shaggy dark hair hid his face, but his hands were callused, one thin scar creeping up the back of his hand toward his wrist."