defeatist vs negativist

defeatist and negativist both are nouns.

Word	Noun	Adjective	Verb	Adverb
defeatist	Yes	No	No	No
negativist	Yes	No	No	No

As nouns, defeatist and negativist are synonyms defined as:

defeatist and negativist: someone who is resigned to defeat without offering positive suggestions

defeatist (noun)	negativist (noun)
someone who is resigned to defeat without offering positive suggestions	someone who is resigned to defeat without offering positive suggestions
	someone who refuses to do what is asked or does the opposite of what is asked