1. the quality or state of being anxious, irritable, or restless; tendency to worry or complain
Usage: uncountable noun; often used to describe a persistent mood or temperament

Examples

• The baby's fretfulness kept the parents awake all night.
• Her fretfulness about the upcoming exam was evident in her constant worrying.
• The toddler's fretfulness subsided once he had a nap.
• His fretfulness made it difficult for him to enjoy the vacation.
• The patient's fretfulness decreased after receiving reassurance from the doctor.
• Fretfulness is common in young children during times of change.
• She tried to hide her fretfulness, but her nervous habits gave her away.