tremendous vs phenomenal

tremendous and phenomenal both are adjectives.

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

As adjectives, tremendous and phenomenal are synonyms defined as:

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

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

tremendous (adjective)	phenomenal (adjective)
extraordinarily good or great; used especially as intensifiers	of or relating to a phenomenon
extraordinarily large in size or extent or amount or power or degree	extraordinarily good or great; used especially as intensifiers
extreme in degree or extent or amount or impact