1. the quality of being pleasant, agreeable, or satisfactory
2. the quality of being kind, friendly, or considerate
3. the quality of being precise or requiring careful attention to detail
Usage: formal

Examples

• The niceness of the weather made it perfect for a picnic.
• Her niceness toward new students made them feel welcome.
• I appreciate the niceness of your gesture in helping me move.
• The niceness of the hotel exceeded our expectations.
• His constant niceness sometimes seemed forced and insincere.
• The niceness of the distinction between the two theories was lost on most students.