flat-earther
flat-earther noun: a person who believes or advocates the claim that the planet Earth is flat.
Noun
flat-earther (plural flat-earthers)
- A person who believes or advocates the claim that the planet Earth is flat.
- His commitment to remaining a flat-earther seems to be strengthened by counterarguments rather than weakened by them.
- Synonyms:
- flat-earthist, platygaean, platygaeanist, flattard, flerf
- Antonyms:
- globe-earther, sphericist, globehead, glober, globetard
- A person who believes or advocates an outlandish, discredited theory; a person who refuses to acknowledge the truth despite overwhelming evidence.
- Global warming is settled, unless you are a flat earther or an energy company apologist.2008, Bob Sweere, "Voice of the Day: Global warming? Yes," News-Leader.com (Missouri), 16 Jun. (retrieved 1 July 2008)
- When it comes to vaccine safety, they are diehard flat-earthers: the microchips and mercury are articles of faith.
Synonyms of flat-earther
- flat-earthist
- platygaean
- platygaeanist
- flattard
- flerf
Antonyms
Forms of flat-earther
| plural | flat-earthers |
|---|---|
| alternative form | flat earther |
| alternative form | flatearther |
| alternative form | flat Earther |
| alternative form | flat-Earther |
Origin of flat-earther
From flat-earth + -er.
Questions about flat-earther
- What does flat-earther mean?
- Flat-earther means a person who believes or advocates the claim that the planet Earth is flat.
- What part of speech is flat-earther?
- Flat-earther is a noun.
- What is the plural of flat-earther?
- The plural of flat-earther is flat-earthers.
Words near flat-earther in the dictionary
Source and license
Adapted from Wiktionary: flat-earther (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.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-flat-earther.wav.
Cite this entry: “flat-earther.” Word.ws, https://word.ws/flat-earther. Based on Wiktionary, CC BY-SA 4.0.