Neanderthal
Americanadjective
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of or relating to Neanderthal man.
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(often lowercase) primitive, unenlightened, or reactionary; culturally or intellectually backward.
noun
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(often lowercase)
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an unenlightened or ignorant person; barbarian.
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a reactionary; a person with very old-fashioned ideas.
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adjective
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relating to or characteristic of Neanderthal man
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primitive; uncivilized
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informal ultraconservative; reactionary
noun
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An extinct variety of human that lived throughout Europe and in parts of western Asia and northern Africa during the late Pleistocene Epoch, until about 30,000 years ago. Neanderthals had a stocky build and large skulls with thick eyebrow ridges and big teeth. They usually lived in caves, made flaked stone tools, and were the earliest humans known to bury their dead. Neanderthals were either a subspecies of modern humans (Homo sapiens neanderthalensis) or a separate, closely related species (Homo neanderthalensis). They coexisted with early modern humans (Cro-Magnons) for several thousand years before becoming extinct, but are not generally believed to have interbred with them.
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See also Mousterian
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The term Neanderthal is sometimes used to refer to a person who is thought to have primitive or unenlightened ideas: “I tried talking politics to Joe, but he's a real Neanderthal.”
Other Word Forms
- Neanderthaler noun
Etymology
Origin of Neanderthal
First recorded in 1860–65; after Neanderthal, valley in Germany, near Düsseldorf, where evidence of Neanderthal man was first found
Explanation
A neanderthal is someone who is rude and not very smart. If your brother interrupts your garden party by spraying your guests with a hose, you can call him a neanderthal. When neanderthal is spelled with a lower-case n, it means a cretin or a dolt — a rough, mean, and slightly foolish person. If you spell it with a capital N, it means an extinct species of human being, and it's the root of the lower-case version. The word Neanderthal is German, named for the Neander Valley where human fossils have been found, and around 1926 neanderthal became popular British slang for a "big, brutish, stupid person."
Vocabulary lists containing neanderthal
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
This pattern suggests that this lineage was once widespread before later Neanderthal populations replaced it with different genetic traits.
From Science Daily • Apr. 22, 2026
From an archaeological perspective, these results reinforce the importance of Central-Eastern Europe in Neanderthal history.
From Science Daily • Apr. 22, 2026
Researchers propose that this behavior could reflect territorial tensions between Neanderthal communities, possibly linked to competition for resources or space.
From Science Daily • Apr. 12, 2026
Therefore, if Neanderthal males and modern human females were mating more frequently, more human X chromosomes would enter the Neanderthal gene pool -- and fewer Neanderthal X chromosomes would end up in human populations.
From Barron's • Feb. 26, 2026
“An anthropologist friend of mine tells me that they’ve got several others in the collection, as well as the ones on display. Some of them are very old indeed. Neanderthal, you know.”
From "The Subtle Knife" by Philip Pullman
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.