subtlety

the subtlety of the Mona Lisa’s smile

the subtlety of a writer’s analysis / of a singer’s phrasing

With all his usual subtlety, he quietly fixed the problem before anyone else noticed it.

To give subtilty to the simple, to the young man knowledge and discretion.

The subtleties of this overture are often overlooked.

At the king's coronation feast, several subtleties were served between main courses.

When eyther Hare or Deare, or any other chase vseth subtleties to deceyue the houndes, we saye they crosse or double.

You doe yet taste

Some subtleties o’ th’ Isle, that will not let you

Beleeue things certaine:

Therefore at Paris where naturally, and also through the aboundance of filth that is about the Citie, the Aire is darke and grosse, the pestilent Infection is lesse fierce and contagious then it is in Prouince, for the subtletie of the Aire stimulates or helps forward the Plague.

Hence we see the amazing Subtlety of this Fire, which pervades Glass as readily as if nothing were in the Way.