unheard-of

• Describe algo tan inusual o extremo que nunca antes se había conocido o hecho; que resulta sorprendente o sin precedentes.

Describes something that is so unusual or extreme that it has never been known or done before.

1. Previously unknownB2formal

   Not known or experienced before; unprecedented or very unusual.

   inaudito, desconocido

   • Such a high level of success was unheard-of in the company's history.
   • The technology was unheard-of just a decade ago.
   • It is unheard-of for a student to skip three grades.

   Sinónimosnewnovelobscureunexampledunfamiliarunheraldedunknownunparalleledunprecedented

   Antónimoscommonconventionalcustomaryfamiliarknownnormalordinarystandardtraditionalusual