How many letters does the top answer for “the quality of lacking refinement and good taste” have?

The most common answer is inelegance (10 letters).

Crossword clue: the quality of lacking refinement and good taste

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

inelegance 10 letters wn-def

the quality of lacking refinement and good taste

the quality of lacking taste and refinement 80% similar → coarseness, grossness, raunch

lacking in refinement or grace or good taste 67% similar → inelegant

lacking refinement or cultivation or taste 50% similar → uncouth