1. the quality or state of being very thin or having little body fat

Examples

• The doctor was concerned about the patient’s extreme skinniness.
• His skinniness made it difficult to find clothes that fit properly.
• The model’s skinniness sparked debate about healthy body image.
• After the illness, her skinniness was quite noticeable.
• The athlete’s skinniness was actually an advantage in long-distance running.
• Parents worried about their teenager’s sudden skinniness.