The quality of readily believing information, truthful or otherwise, usually to an absurd extent.(noun)
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Use "gullibility" in a sentence
"The current estimate of the sea-gull as an intellectual force is compressed into the word "gullibility" -- a verbal monument of contempt."
"Ah, you want male chauvinism, perhaps we should discuss the evolutionary pressure on women that selects for gullibility aka the “Dunham effect”, with its all too apparent implications for voting patterns. /g"
"He delivered himself of a Ratner moment, when asked if there was any known benefit to homeopathic remedies, beyond the placebo effect (otherwise known as gullibility)."