Homo sapiens neanderthalensis vs Neanderthal man

Homo sapiens neanderthalensis and Neanderthal man both are nouns.

Word	Noun	Adjective	Verb	Adverb
Homo sapiens neanderthalensis	Yes	No	No	No
Neanderthal man	Yes	No	No	No

As nouns, Homo sapiens neanderthalensis and Neanderthal man are synonyms defined as:

Homo sapiens neanderthalensis and Neanderthal man: extinct robust human of Middle Paleolithic in Europe and western Asia

Other synonyms of Homo sapiens neanderthalensis include Neandertal, Neandertal man, Neanderthal.

Homo sapiens neanderthalensis (noun)	Neanderthal man (noun)
extinct robust human of Middle Paleolithic in Europe and western Asia	extinct robust human of Middle Paleolithic in Europe and western Asia