How many letters does the top answer for “the knowledge of a sciolist; superficial knowledge.” have?

The most common answer is sciolism (8 letters).

Crossword clue: the knowledge of a sciolist; superficial knowledge.

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

sciolism 8 letters web-def

pretentious superficiality of knowledge

superficial knowledge; a smattering. 50% similar → smatter