negativist vs defeatist

negativist and defeatist both are nouns.

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

As nouns, negativist and defeatist are synonyms defined as:

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

negativist (noun)	defeatist (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