beast

Any animal other than a human; usually only applied to land vertebrates, especially large or dangerous four-footed ones.

(more specific) A domestic animal, especially a bovine farm animal.

A person who behaves in a violent, antisocial or uncivilized manner.

Anything regarded as larger or more powerful than one of its normal size or strength.

“That is a beast of a stadium.”

Someone who is particularly impressive, especially athletically or physically.

(prisons) A sex offender.

Something unpleasant and difficult.

A thing or matter, especially a difficult or unruly one.

To impose arduous exercises, either as training or as punishment.

(chiefly Midwestern and northeastern US) great; excellent; powerful