resultant vs ending

resultant and ending both are nouns.

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

As nouns, ending is a hypernym of resultant; that is, ending is a word with a broader meaning than resultant:

Other hypernyms of resultant include conclusion, finish.

resultant (noun)	ending (noun)
a vector that is the sum of two or more other vectors	the act of ending something
something that results	the end of a word (a suffix or inflectional ending or final morpheme)
the final point in a process	the last section of a communication
	event whose occurrence ends something
	the point in time at which something ends

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