marvellous vs tremendous

marvellous and tremendous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
marvellous	No	Yes	No	No
tremendous	No	Yes	No	No

As adjectives, marvellous and tremendous are synonyms defined as:

marvellous and tremendous: extraordinarily good or great; used especially as intensifiers

Other synonyms of marvellous include fantastic, grand, howling, marvelous, phenomenal, rattling, terrific, wonderful, wondrous.

marvellous (adjective)	tremendous (adjective)
extraordinarily good or great; used especially as intensifiers	extraordinarily good or great; used especially as intensifiers
too improbable to admit of belief	extraordinarily large in size or extent or amount or power or degree
being or having the character of a miracle	extreme in degree or extent or amount or impact