How many letters does the top answer for “in a menacing manner” have?

The most common answer is menacingly (10 letters).

Crossword clue: in a menacing manner

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

menacingly 10 letters wn-def

in a menacing manner

threateningly 13 letters wn-def

in a menacing manner

in an unpleasant or menacing manner 67% similar → forbiddingly