unheard of

See also: unheard-of

English

Adjective

unheard of (not comparable)

1. Alternative spelling of unheard-of (used as predicative)
   • 1952 October, C. A. Johns, “One Hundred Years at Kings Cross—1”, in Railway Magazine, pages 650-651:

     Such was the station provided for the infrequent services of 1852, when suburban traffic was unheard of, and Hornsey, Colney Hatch & Southgate, Barnet, and Potters Bar were the only intermediate stations on the 17¾ miles between London and Hatfield.