Definition of Neanderthaler in English:

Neanderthaler

Pronunciation /nɪˈandətɑːlə/

noun

(also Neandertaler)
  • A Neanderthal hominid.

Origin

Early 20th century. From German Neanderthaler, (now usually) Neandertaler from Neanderthal, (now usually) Neandertal + -er.