brute

Short definition from Wiktionary

Adjective

1. 1
   Without reason or intelligence (of animals).
2. 2
   Characteristic of unthinking animals; senseless, unreasoning (of humans).
3. 3
   Unconnected with intelligence or thought; purely material, senseless.
4. 4
   Crude, unpolished.
5. 5
   Strong, blunt, and spontaneous; being purely physical in nature.
6. 6
   Brutal; cruel; fierce; ferocious; savage; pitiless, without intelligence or reason.

Noun

1. 1
   An animal seen as being without human reason; a senseless beast.
2. 2
   A person with the characteristics of an unthinking animal; a coarse or brutal person, particularly one who is dim-witted.
3. 3
   A kind of powerful spotlight.
4. 4
   One who has not yet matriculated.

Verb

1. 1
   To shape (diamonds) by grinding them against each other.
2. 2
   Obsolete spelling of bruit.