Monumental /(?)/

Mon·u·men·tal

Monumental

a.
  1. Of, pertaining to, or suitable for, a monument; as, a monumental inscription.
  2. Serving as a monument; memorial; preserving memory.
    A work outlasting monumental brass.
  3. Of lasting significance; as, a monumental work of literature; a monumental accomplishment.
  4. Exceptionally large in quantity, quality, or degree; as, a monumental amount of work to be done