Definition of "niceness" in English

noun

1. (obsolete) Silliness; folly.

2. Effeminacy; indulgence in soft living or luxuriousness.

3. (obsolete) Shyness; reserve.

4. Fastidiousness; fine sensitivity.

5. Pleasantness, especially of behaviour or personality; agreeableness.

6. (computing, Unix) A value determining how much processor time to concede to a running process. (See also nice (verb), renice.)