What is the meaning of Unheard-of?

(a.) New; unprecedented; unparalleled.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). unheard-of. Retrieved October 1, 2026, from http://smartdefine.org/unheard-of/definitions/2077132
ChicagoWebster's. 2011. "unheard-of" http://smartdefine.org/unheard-of/definitions/2077132 (accessed October 1, 2026).
HarvardWebster's 2011, unheard-of, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/unheard-of/definitions/2077132>.
MLAWebster's. "unheard-of" 28 May 2011. Web. 1 October 2026. <http://smartdefine.org/unheard-of/definitions/2077132>
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