Definition of superfineness in English:

superfineness

noun

  • The quality of being superfine; especially excessive refinement or fastidiousness.

Origin

Late 17th century. From superfine + -ness.

Pronunciation

superfineness

/ˈs(j)uːpəfʌɪnnəs/ /s(j)uːpəˈfʌɪnnəs/