motivating vs motive

motivating and motive both are nouns.

Word	Noun	Adjective	Verb	Adverb
motivating	Yes	Yes	No	No
motive	Yes	Yes	No	No

As adjectives, motivating and motive are synonyms defined as:

Other synonyms of motivating include motivative.

motivating (noun)	motive (noun)
the act of motivating; providing incentive	the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior
	a design or figure that consists of recurring shapes or colors, as in architecture or decoration
	a theme that is repeated or elaborated in a piece of music

motivating (adjective)	motive (adjective)
impelling to action	causing or able to cause motion
	impelling to action