approximateness

Example:The exactness of the measurements was essential for the experiment to be reliable.

Definition:The state or quality of being exact; exactness or precision is the property of being exact or precise in measurement, value, or degree.

Example:The precision of the machine's operation was crucial for the high-quality results.

Definition:The degree of exactness or variation from a standard or accepted value; it is the ability to produce a very fine level of detail or gradation in output.

Example:The reality of the situation was starkly different from the initial expectations.

Definition:The actual state of things; the quality of being actual or real as opposed to imaginary or fictitious.