st(y)üˈpendəs, ÷ -njəs adjective
Etymology: Latin stupendus, gerundive of stupēre to be astonished
1. : causing astonishment or wonder : awesome , marvelous
that retribution follows guilt, in ways the most mysterious and stupendous — Sheridan Le Fanu
the still surviving walls and moats which form so stupendous a feature of the place — Country Life
a stupendous occasion
a stupendous silence
2. : of amazing size or greatness : prodigious
a stupendous field of grass on which … some 10,000 wild animals were roaming — Alan Moorehead
a facade stupendous in its proportions — O.S.Nock
stupendous labors
stupendous demand
stupendous war production
stupendous uproar
Synonyms: see monstrous