Abstractness n. : The quality of being abstract.

Example:
What's the most difficult book you've ever read, and how did you manage to stick through it?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, stract, webster, abstractness, Word Games, Webster Online Dictionary with audio pronunciations, Medieval Latin, strak, thesaurus, glossary, english, language, ESL, adjective, Etymology, abstractus, past participle.

Defination from the web:
... Learn more about "abstractness" Learn more about "abstractness" and related topics at Britannica.com. Pronunciation Symbols. Share this entry: Link to this page: ...