resultant vs decision

resultant and decision both are nouns.

Word	Noun	Adjective	Verb	Adverb
resultant	Yes	Yes	No	No
decision	Yes	No	No	No

As nouns, decision is a hyponym of resultant; that is, decision is a word with a more specific, narrower meaning than resultant:

Other hyponyms of resultant include denouement, deal, aftermath, consequence, separation, sequel, subsequence, worst.

resultant (noun)	decision (noun)
a vector that is the sum of two or more other vectors	the act of making up your mind about something
something that results	the trait of resoluteness as evidenced by firmness of character or purpose
the final point in a process	a position or opinion or judgment reached after consideration
	the outcome of a game or contest
	(boxing) a victory won on points when no knockout has occurred

resultant (adjective)	decision (adjective)
occurring with or following as a consequence