adjective
US/ɪnˌsaɪ.kləˈpiː.dɪk/
UK/ɪnˌsaɪ.kləˈpiː.dɪk/
Containing a very large amount of knowledge about many subjects or about one subject.
In context
My grandfather has an encyclopedic knowledge of football history and remembers every score.
Short entry. Full notes coming.