How many letters does the top answer for “excessively conventional and unimaginative and hence dull” have?

The most common answer is stodgy (6 letters).

Crossword clue: excessively conventional and unimaginative and hence dull

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

stodgy 6 letters wn-def

excessively conventional and unimaginative and hence dull

stuffy 6 letters wn-def

excessively conventional and unimaginative and hence dull