The Sublime is sometime used as a synonym for subtle or sophisticated but with aesthetic overtones. In the original setting for this aesthetic notion it was a combination of Beauty & Greatness, and it evolved to also include Awe & Terror & Horror. For example Kant held that
the sublime was of three kinds: the noble, the splendid, and the terrifying.
Mathematics is commonly held (by mathematicians and others - for example Rexroth a poet, and Pasternak a novelist and poet) to have Beauty; can it also be sublime in all of Kants sense?
Sublime in the 16th century was generally understood to mean as:
"expressing lofty ideas in an elevated manner," from Middle French sublime (15c.), or directly from Latin sublimis "uplifted, high, borne aloft, lofty, exalted, eminent, distinguished," possibly originally "sloping up to the lintel," from sub "up to" + limen "lintel, threshold, sill".