How many letters does the top answer for “adherence to some extreme traditional theological concept or interpretation” have?

The most common answer is cabalism (8 letters).

Crossword clue: adherence to some extreme traditional theological concept or interpretation

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

cabalism 8 letters wn-def

adherence to some extreme traditional theological concept or interpretation

kabbalism 9 letters wn-def

adherence to some extreme traditional theological concept or interpretation