Definitions:

1. The quality of being exact and accurate. NOUN
   • They appreciated the preciseness of his account.
2. the quality of being reproducible in amount or performance noun
   • They handled it with the preciseness of an automaton.
3. The quality of being very careful and accurate, especially about small details. NOUN
   • His preciseness and ability to remain cool under pressure started getting noticed.

Synonyms:

• Accuracy
• accurateness
• exactitude
• exactness
• perfection
• precision