How many letters does the top answer for “being without rhythm or regularity, as the pulse.” have?

The most common answer is arrhythmic (10 letters).

Crossword clue: being without rhythm or regularity, as the pulse.

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

arrhythmic 10 letters web-def

without regard for rhythm

arrhythmous 11 letters web-def

Being without rhythm or regularity, as the pulse.

being without rhythm. coleridge. 50% similar → rhythmless