Grandest

adjective

1. Of a large size or extent; great.

   "a grand army"

2. Great in size, and fine or imposing in appearance or impression; illustrious, dignified, magnificent.

   "His simple vision has transformed into something far more grand."

3. Having higher rank or more dignity, size, or importance than other persons or things of the same name.

   "The Grand Viziers of the Ottoman Empire."

4. (usually in compound forms) Standing in the second or some more remote degree of parentage or descent.

   "grandfather, grandson, grand-child"

5. Fine; lovely.

   "A cup of tea? That'd be grand."