Capable

a.
  1. Possessing ability, qualification, or susceptibility; having capacity; of sufficient size or strength; as, a room capable of holding a large number; a castle capable of resisting a long assault.
  2. Possessing adequate power; qualified; able; fully competent; as, a capable instructor; a capable judge; a mind capable of nice investigations.
  3. Possessing legal power or capacity; as, a man capable of making a contract, or a will.
  4. Capacious; large; comprehensive.

Capable is usually followed by of, sometimes by an infinitive.