How many letters does the top answer for “resembling an abyss in depth; so deep as to be unmeasurable” have?

The most common answer is abysmal (7 letters).

Crossword clue: resembling an abyss in depth; so deep as to be unmeasurable

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

abysmal 7 letters wn-def

resembling an abyss in depth; so deep as to be unmeasurable

abyssal 7 letters wn-def

resembling an abyss in depth; so deep as to be unmeasurable