superfine

Adjective

superfine (comparative more superfine, superlative most superfine)

1. Extremely subtle or refined; extremely sensitive to slight impressions or perceptions.
   • The bulk of Mankind have not leisure for Learning and Logick, and superfine distinctions of the Schools.1695, [John Locke], The Reasonableness of Christianity, as Delivered in the Scriptures, London: […] Awnsham and John Churchil, […], →OCLC

   Synonyms:

   extrafine

2. Extremely refined or sophisticated; very elegant.
   • But this I knovv, ſhould Jupiter agen / Deſcend from heaven, to re-converſe vvith men; / The Romane Language full and ſuperfine, / If Iove vvo'd ſpeake, he vvo'd accept of thine.1648, Robert Herrick, “To His Learned Friend, M. Jo[hn] Harmar, Phisitian to the Colledge of Westminster”, in Hesperides: Or, The Works both Humane & Divine […], London: […] John Williams, and...
   • This place, with regard to superfine visitors, fills slowly and the season is expected not only to be late, but thin, of company, from the many families that are rambling abroad.1815, Frances Burney, Journals and Letters, Penguin, published 2001, page 498
3. Having an especially fine size or texture; made of very small particles or threads.
   • Some recipes call for superfine sugar because it dissolves easier.
   • Twelve years ago they made only course ^([sic]) Cloth, but now they weave superfine, and fine Cloth.1726, The Political state of Great Britain, page 370
4. Of a very high or pure grade or quality.
   • With respect to the matter of the medals, we must observe that, for the generality, they are made of pure gold or silver, without the allay of any other metal. Some indeed are struck on superfine copper.1799, The laboratory; or, School of arts, page 225
   • This set contains 97 pieces of superfine china and 24 pieces of etched Belgian glassware1932 August 26, “Combination Dinner Set / Of 121 Pieces for 27.50”, in Calgary Daily Herald
5. Very good, excellent.