Abstrusity is a term used to describe something that is difficult to comprehend or understand. There are several synonyms for this word, such as complexity, obscurity, intricacy, and perplexity. These words all convey the idea of difficulty in grasping something, whether it be an idea, concept, or problem. Other synonyms for abstrusity include vagueness, opacity, inscrutableness, and enigma. These words suggest a lack of clarity or transparency in the thing that is being considered. Overall, the synonyms for abstrusity help us to better understand the complexity of the ideas and concepts that we encounter in life.