someone or thing of a sort that there's no other such; anything extraordinary; something which has not its equal. Its given as a name to different items, as to a choice selection of apple, a species of medic (Medicago lupulina), many different pottery clay, etc.
previously, you or thing such as for instance having no parallel; a fantastic thing; something hasn't its equal.
Specifically— See blackseed, medic, and Medicago.
A variety of apple. Additionally spelled nonsuch.
type of excellence or perfection of a kind; one having no equal