1. the quality or state of being cruel, harsh, or lacking in compassion
2. an unkind act or remark

Examples

• His unkindness toward the new student was shocking.
• She couldn’t understand the unkindness in his voice.
• The teacher’s unkindness made the children afraid to ask questions.
• After years of unkindness, she decided to end the friendship.
• His small unkindnesses eventually drove away all his friends.
• The unkindness of strangers surprised her during her difficult time.