How many letters does the top answer for “bright and pleasant; promoting a feeling of cheer” have?

The most common answer is cheery (6 letters).

Crossword clue: bright and pleasant; promoting a feeling of cheer

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

cheery 6 letters wn-def

bright and pleasant; promoting a feeling of cheer

gay 3 letters wn-def

someone who is sexually attracted to persons of the same sex

sunny 5 letters wn-def

bright and pleasant; promoting a feeling of cheer