The term 'abstruse' is typically used in formal or academic settings rather than everyday conversations. Her thesis on quantum mechanics is rather abstruse.
Pro Tip 2/3
Shows Expertise
'Abstruse' often suggests a high level of understanding or expertise is required to comprehend the subject. The professor's abstruse lecture went over the students' heads.
Pro Tip 3/3
Expect Effort
When something is described as abstruse, expect to put in effort to understand it. I spent hours trying to decipher the abstruse text.