flat-earther - Wikiwand

English Wikipedia has articles on:

flat-earther and figure of the Earth

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From flat-earth +‎ -er.

flat-earther (plural flat-earthers)

A person who believes or advocates the claim that the planet Earth is flat.
Synonyms: flat-earthist, platygaean, (derogatory slang) platygaeanist; flattard, flerf

Antonyms: globe-earther, sphericist; (derogatory slang) globehead, glober, globetard

His commitment to remaining a flat-earther seems to be strengthened by counterarguments rather than weakened by them.
(figuratively, by extension, derogatory) A person who believes or advocates an outlandish, discredited theory; a person who refuses to acknowledge the truth despite overwhelming evidence.
- 2008, Bob Sweere, "Voice of the Day: Global warming? Yes," News-Leader.com (Missouri), 16 Jun. (retrieved 1 July 2008),
  Global warming is settled, unless you are a flat earther or an energy company apologist.
When it comes to vaccine safety, they are diehard flat-earthers: the microchips and mercury are articles of faith.

person who believes the Earth is flat

Arabic: مُسَطَّح m (musaṭṭaḥ) (often derogatory)
French: terreplatiste (fr) m or f, platiste (fr) m or f
Galician: terraplanista m or f
German: Flacherdler m, Flacherdlerin f, Flachweltler m, Flachweltlerin f
Greek: επιπεδιστής m (epipedistís), επιπεδίστρια f (epipedístria)
Hungarian: laposföld-hívő
Italian: terrapiattista m
Macedonian: рамноземјаш m (ramnozemjaš), рамноземец m (ramnozemec)
Polish: płaskoziemiec (pl) m, płaskoziemka f
Portuguese: terraplanista (pt) m or f
Russian: плоскоземе́лец (ru) m (ploskozemélec), плоскоземе́льщик (ru) m (ploskozemélʹščik), плоскоёб m (ploskojób) (derogatory)
Spanish: terraplanista (es) m or f, tierraplanista m or f
Swedish: plattjordare (sv) c
Turkish: düz dünyacı