1. (noun)Neandertal man, Neanderthal man, Neandertal, Neanderthal, Homo sapiens neanderthalensis extinct robust human of MiddlePaleolithic in Europe and westernAsia
2. (adj)boorish, loutish, neanderthal, neandertal, oafish, swinish ill-mannered and coarse and contemptible in behavior or appearance "was boorish and insensitive"; "the loutish manners of a bully"; "her stupid oafish husband"; "aristocratic contempt for the swinish multitude"
3. (adj)Neanderthal, Neanderthalian, Neandertal relating to or belonging to or resembling Neanderthal man "Neanderthal skull"