1. plural of abstruseness; the quality or state of being abstruse (difficult to understand; obscure or complex)
Usage: countable and uncountable uses; often used in academic or formal contexts

Examples

• The abstrusenesses of quantum physics challenge even experienced scientists.
• Students complained about the abstrusenesses in the professor's lecture notes.
• The author's writing is marked by unnecessary abstrusenesses that confuse readers.
• Despite the abstrusenesses of the text, the main argument eventually becomes clear.
• The philosopher's work is known for its deliberate abstrusenesses and dense terminology.