1. the quality or state of being voluntary; the condition of acting or done by one’s own free will

Examples

• The voluntariness of her donation made it especially meaningful.
• The court questioned the voluntariness of his confession.
• The success of the program depends on the voluntariness of participation.
• They emphasized the voluntariness of the survey responses.
• The voluntariness of community service distinguishes it from punishment.
• Legal experts debated the voluntariness of the defendant’s plea.