Crossword clue: pertaining to, or of the nature of, an encyclopedia; embracing a wide range of subjects.
2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
comprehensive in scope or content (as an encyclopedia)
Pertaining to, or of the nature of, an encyclopedia; embracing a wide range of subjects.