1. the quality or state of being stupid or foolish
Usage: informal
2. the quality or state of being sluggish or lethargic
Usage: informal

Examples

• His dopiness in class was obvious to everyone.
• The medication caused a temporary dopiness that made it hard to concentrate.
• She blamed her dopiness on lack of sleep.
• The dopiness of his response surprised his colleagues.
• Morning dopiness is common before having coffee.
• The teacher was frustrated by the student’s apparent dopiness.