Definition.com
Profundity is what we often call it when both the speaker and the audience are confused.
Definition.com
A Profundity is often an equivocation — trivially true in one sense, obviously false in another, and deep and subtle only if you do not choose.
Definition.com
Profundity is wont to present as unresponsiveness. With deep men, as with deep wells, it takes a long time for anything that falls into them to hit bottom. Many impatient onlookers too quickly suppose them unresponsive, or even boring.