Not conducive to sociability
The definition of cheerful is a person or thing that brings joy, humor or good spirits.
(Often derogatory) silent and withdrawn after being upset
Full of complaint; peevish
Involving interchange; reciprocal.
The definition of serious is showing deep thought, not joking, or a situation that requires careful thought.
Marked by sternness or harshness; forbidding:
Having the sharp, acid taste of lemon juice, vinegar, green fruit, etc.
Having a bad temper
Given to frequent changes of mood; temperamental.
Threatening, as of weather conditions; ominous:
Difficult to manage, deal with, or change to an acceptable condition:
Displaying little movement or activity; slow; inactive:
Affected or marked by ill humor or irritability.
Having richness or depth:
Scowling; frowning darkly
The definition of morose is having a gloomy attitude or character.
Feeling or looking gloomy, sullen, or morose
In a bad-tempered or sulky mood; grumpy
Inclined to be vexed or troubled; peevish.
Having or showing a bad temper; quarrelsome; sullen; irritable
Querulous or discontented.
Morose or sullen
Rough or surly in manner or speech; brusquely rude
Generally warm, approachable and easy to relate with in character.
Full of high spirits and good humor; merry
Served without milk or cream:
Physically slow; slow-moving; sluggish
Lonely and sad; unhappy and neglected
The definition of grim is something that is so unpleasant it pushes you away.
Characterized by or resulting from anger.
Sad and depressed; gloomy
Difficult to alleviate or cure.
Allowing movement or action only at a low speed:
Dark and gloomy or dull
Hard to handle, treat, or deal with; intractable
(Archaic) Manifest to the mind, as light is to the eyes; clear; evident; plain.
Dark and cloudy
Characterized by or expressive of a foreboding somberness
Making or implying threats:
showing a brooding ill humor; ; ; ; ; ; - Bruce Bliven
Find another word for sullen. In this page you can discover 76 synonyms, antonyms, idiomatic expressions, and related words for sullen, like: unsociable, cheerful, sulky, querulous, silent, cross, depressing, serious, sullenness, dour and sour.