Ne·an·der·thal (nē-ān'dər-thôl', -tôl', nā-än'dər-täl') n.
An extinct human species (Homo neanderthalensis) or subspecies (Homo sapiens neanderthalensis) living during the late Pleistocene Epoch throughout most of Europe and parts of Asia and northern Africa and associated with Middle Paleolithic tools.
An individual belonging to this species or subspecies.
Slang A crude, boorish, or slow-witted person.
adj.
Of, having to do with, or resembling Neanderthals.
Slang Crude, boorish, or slow-witted.
[After Neanderthal (Neandertal), a valley of western Germany near Düsseldorf.] Ne·an'der·thal'oid' (-thô'loid', -tô'-, -tä'-) adj.