How many letters does the top answer for “in an unfair and insulting manner” have?

The most common answer is insultingly (11 letters).

Crossword clue: in an unfair and insulting manner

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

insultingly 11 letters wn-def

in an unfair and insulting manner

in an unfair manner 67% similar → unfairly

a manner that is rude and insulting 50% similar → rudeness

in an unjust or unfair manner 50% similar → wrongfully