stupendous vs prodigious

stupendous and prodigious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
stupendous	No	Yes	No	No
prodigious	No	Yes	No	No

As adjectives, stupendous and prodigious are synonyms defined as:

stupendous and prodigious: so great in size or force or extent as to elicit awe

Other synonyms of stupendous include colossal.

stupendous (adjective)	prodigious (adjective)
so great in size or force or extent as to elicit awe	far beyond what is usual in magnitude or degree
	so great in size or force or extent as to elicit awe
	of momentous or ominous significance