callus (verb) harden: accustom
Sinonime: accomplished, ace*,
adroit, brainy,
capable,
clean*,
crack*, crackerjack*,
deft,
dexterous, expert,
hot*, hotshot, know stuff,
masterful, masterly, no dummy, no slouch, nobody's fool, on the ball, on the beam, practiced, proficient,
quick,
savvy,
sharp, sharp as a tack, skilled, skillful,
slick,
smooth, there, up to speed,
versed,
whiz*,
wizardAntonime: awkward,
clumsy,
incompetent,
inept, unskilled