Some common synonyms of sullen are crabbed, gloomy, glum, morose, saturnine, sulky, and surly. While all these words mean "showing a forbidding or disagreeable mood," sullen implies a silent ill humor and a refusal to be sociable.

What is the opposite of sullenly?

sullen. Antonyms: bright, light, cheerful, favorable, genial, kindly, glad, gladsome, blithe. Synonyms: gloomy, heavy, dismal, foreboding, sulky, moody, lowering, cheerless.

Is cheerful an antonym for sullen?

OPPOSITES FOR sullen

1, 2 cheerful.