Abstruse
Synonyms Obscure, esoteric, recherché, recondite, hard, perplexing, inscrutable, Delphic, complicated, over/above one's head, unfathomable, mysterious, involuted, arcane, little known, rarefied, difficult, puzzling, enigmatic, cryptic, complex, involved, incomprehensible, impenetrable, and involute.
Example Sentences
The professor’s lecture was abstruse.
He explained the abstruse theory with ease.
Her writing is full of abstruse terms.
The subject became too abstruse for beginners.
They struggled with the abstruse concept.
The book covers abstruse philosophical ideas.
He enjoyed reading abstruse literature.
The math problem was abstruse to most students.
She simplified the abstruse material for the class.
The explanation was too abstruse to follow.