1. the quality or state of being involuntary; lack of voluntary control or choice
Usage: abstract noun form of involuntary

Examples

• The involuntariness of her tears made it clear she was genuinely upset.
• He argued that the involuntariness of his reaction proved he was not responsible.
• The involuntariness of the reflex meant it happened without conscious thought.
• She felt frustrated by the involuntariness of her nervous habits.
• The court considered the involuntariness of his confession when deciding the case.
• The involuntariness of muscle spasms distinguishes them from deliberate movements.