1. comparative form of abstruse; more difficult to understand or comprehend; more obscure or complex
Usage: comparative degree of the adjective 'abstruse'

Examples

• The second chapter of the philosophy book is abstruser than the first.
• His later works became progressively abstruser and harder for general readers to follow.
• The mathematical proof seemed abstruser to the students than the professor had anticipated.
• Modern poetry can be abstruser than classical verse.
• The abstruser concepts in quantum physics require years of study to master.