How many letters does the top answer for “(of meaning) capable of being penetrated or comprehended” have?

The most common answer is fathomable (10 letters).

Crossword clue: (of meaning) capable of being penetrated or comprehended

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

fathomable 10 letters wn-def

(of meaning) capable of being penetrated or comprehended

capable of being comprehended or understood 50% similar → comprehendible, comprehensible