[ pruh-fuhn-di-tee ]
/ prəˈfʌn dɪ ti /

noun, plural pro·fun·di·ties for 2, 3.

the quality or state of being profound; depth.
Usually profundities. profound or deep matters.
a profoundly deep place; abyss.

Origin of profundity

1375–1425; late Middle English profundite < Late Latin profunditās. See profound, -ity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for profundity