flat-earther

Definitions

1. A person who believes or advocates the claim that the planet Earth is flat.
2. A person who believes or advocates an outlandish, discredited theory; a person who refuses to acknowledge the truth despite overwhelming evidence.
   broadly, derogatory, figuratively

Equivalents

Examples

“His commitment to remaining a flat-earther seems to be strengthened by counterarguments rather than weakened by them.”

“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.”

CEFR level