Daily Word Play

sullen

adjective
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sullen

bad-tempered and gloomy

Synonyms:gloomy, morose, grumpy, sulky, pouty
Antonyms:cheerful, happy, sociable, friendly, optimistic

What Makes This Word Tick

Sullen describes a mood that is gloomy, resentful, and hard to approach. It is not just quietness. The word often suggests bad temper held inside rather than spoken openly.