neoevolutionism vs evolutionism

neoevolutionism and evolutionism both are nouns.

Word	Noun	Adjective	Verb	Adverb
neoevolutionism	Yes	No	No	No
evolutionism	Yes	No	No	No

As nouns, evolutionism is a hypernym of neoevolutionism; that is, evolutionism is a word with a broader meaning than neoevolutionism:

neoevolutionism: school of anthropology concerned with long-term culture change and with the similar patterns of development that may be seen in unrelated, widely separated cultures.
evolutionism: (biology) a scientific theory of the origin of species of plants and animals

Other hypernyms of neoevolutionism include theory of evolution, theory of organic evolution, school.

neoevolutionism (noun)	evolutionism (noun)
school of anthropology concerned with long-term culture change and with the similar patterns of development that may be seen in unrelated, widely separated cultures.	(biology) a scientific theory of the origin of species of plants and animals