When someone is unhappy and refuses to speak or smile, they show sulkinesses.
Sulkinesses are not good because they show that someone is upset and not being friendly.
Examples:
Her sulkinesses made everyone feel sad.
I don't like it when he shows his sulkinesses.
The little boy's sulkinesses lasted all day.
The cat's sulkinesses made everyone laugh.
His sulkinesses were so big, they filled the whole room.
The sulkinesses in the house were like a big dark cloud.