Definition of misoneist in US English:

misoneist

noun

rare
  • A person who dislikes novelty.

Origin

Late 19th century; earliest use found in The Review of Reviews. From misone- + -ist. Compare French misonéiste, Italian misoneista, Spanish misoneísta.

Pronunciation

misoneist

/ˌmɪsə(ʊ)ˈniːɪst/