Definition of nonesuch in English:

nonesuch

(also nonsuch)

noun

  • 1archaic A person or thing regarded as excellent or perfect.

    utmost, optimum, last word, very limit, height, epitome, peak, pinnacle, acme, apex, apogee, zenith, culmination, perfection, nonpareil, extreme, extremity
    View synonyms
  • 2A small Eurasian medick which is widely grown as a constituent of grazing pasture.

Origin

Early 17th century: coined on the pattern of nonpareil.

Pronunciation

nonesuch

/ˈnɒnsʌtʃ/