superfine adjective5 •Having an especially fine size or texture; made of very small particles or threads.Some recipes call for superfine sugar because it dissolves easier. •Of a very high or pure grade or quality.This set contains 97 pieces of superfine china and 24 pieces of etched Belgian glassware — 1932 •Very good, excellent. •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 •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 formsmore superfine · most superfine