Of astounding force, volume, degree, or excellence; marvelous.(adjective)
Amazingly large or great; huge. See Synonyms at enormous.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "stupendous" in a sentence
"So stupendous is the potential, it could transform global energy politics and economics."
"Giap was a fine general but he had great troops willing and apparently eager to sustain stupendous hardships for long long periods, and a country behind him in which every citizen worked in essence 12 hours a day 7 days a week for 25 years, for no pay."
"And equally stupendous is the callousness of the people who believe in Christ, acknowledge"