American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Hatred or fear of change or innovation.

[C19: from Italian misoneismo; see miso-, neo-, -ism]

hatred of anything new

mis•o•ne•ism

(ˌmɪs oʊˈni ɪz əm, ˌmaɪ soʊ-)

hatred, distrust, or fear of what is new or represents change.

mis`o•ne′ist, n.

mis`o•ne•is′tic, adj.

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