esotericintended for or likely to be understood by only a small group with specialised knowledgeThe professor's lecture on quantum chromodynamics was far too esoteric for the general audience.NoteThe professor's lecture on quantum chromodynamics was far too esoteric for the general audience.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now