healthy
purebred
thoroughbred
able-bodied
burly
coal-black
fine-looking
full-grown
high-spirited
high-strung
hot-blooded
manly
nineteen-year-old
piebald
pure-blood
pure-blooded
rawboned
red-faced
rosy-cheeked
ruddy-faced
self-willed
sinewy
sprightly
uncivilized
untutored
virile
warm-hearted