abstractnesses
n. C1 Advanced ab·stract·ness·es
n. the quality of being difficult to understand because it deals with ideas rather than physical things. This form is very rare and usually appears in academic writing.
n. the quality of being abstract or difficult to grasp through direct sensory experience. This plural form is extremely rare and typically restricted to highly technical or philosophical discourse.
The abstractnesses of the theory made it hard to teach.
The philosopher explored the various abstractnesses of human consciousness and how they relate to physical reality.
While the initial concepts were clear, the abstractnesses of the later chapters required a level of mathematical maturity that many students lacked at that stage.