How many letters does the top answer for “not correct; not in conformity with fact or truth” have?

The most common answer is incorrect (9 letters).

Crossword clue: not correct; not in conformity with fact or truth

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

incorrect 9 letters wn-def

not correct; not in conformity with fact or truth

wrong 5 letters wn-def

not correct; not in conformity with fact or truth

conformity to fact or truth 60% similar → correctness