A horn.
The antonym of a unicorn could be a horse.
Either half horse half Unicorn or a Unicorn or a horse. Hard to tell. A DemiCorn.
you get a unicorn
unicorn
pony or unicorn
Unicorn
A Unicorn is a cross between a horse and a drunken douschebag from Denmark
Unicorn
a unicorn
A horse, of course.
Unicorns are a type of Horse
Everything