terrific vs rattling

terrific is not a noun while rattling is a noun.

Word	Noun	Adjective	Verb	Adverb
terrific	No	Yes	No	No
rattling	Yes	Yes	No	Yes

As adjectives, terrific and rattling are synonyms defined as:

terrific and rattling: extraordinarily good or great; used especially as intensifiers

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

terrific (noun)	rattling (noun)
	a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders)

terrific (adjective)	rattling (adjective)
causing extreme terror	quick and energetic
extraordinarily good or great; used especially as intensifiers	extraordinarily good or great; used especially as intensifiers
very great or intense

terrific (adverb)	rattling (adverb)
	used to give emphasis