How many letters does the top answer for “containing or made of or resembling or characteristic of a metal” have?

The most common answer is metallic (8 letters).

Crossword clue: containing or made of or resembling or characteristic of a metal

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

metallic 8 letters wn-def

containing or made of or resembling or characteristic of a metal

not containing or resembling or characteristic of a metal 67% similar → nonmetal, nonmetallic