
Sullen
Mood Indicator
Use 'sullen' to describe someone showing irritation or ill humor by a gloomy silence.
After losing the game, he had a sullen demeanor.
Not Rude
'Sullen' suggests a silent moodiness, not rudeness or meanness.
Her sullen attitude was more about her sadness than any dislike for us.
Temporary State
'Sullen' often implies a temporary state rather than a permanent trait.
He's usually cheerful, just a bit sullen today.