Word.ws English Dictionary

flat-earthism

flat-earthism noun: the belief in, or advocacy for, the theory that the planet Earth is flat.

Noun

flat-earthism (uncountable)

  1. The belief in, or advocacy for, the theory that the planet Earth is flat.

Origin of flat-earthism

From flat-earth + -ism.

Questions about flat-earthism

What does flat-earthism mean?
Flat-earthism means the belief in, or advocacy for, the theory that the planet Earth is flat.
What part of speech is flat-earthism?
Flat-earthism is a noun.

Words near flat-earthism in the dictionary

  1. flat-crown
  2. flat-earth
  3. flat-earther
  4. flat-earthers
  5. flat-earthery
  6. flat-earthism
  7. flat-earthist
  8. flat-earthists
  9. flat-faced longhorn
  10. flat-faced longhorns
  11. flat-faced seahorse

Source and license

Adapted from Wiktionary: flat-earthism (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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