Added 9 October 2026 exactness noun Categories: Describing WordsRare Words noun ! Definition from WordNet 3.1, Princeton University. More about exactness at Wordnik → Where our words come from → The quality of being exact. he demanded exactness in all details Related Words: exactitudeaccuracythoroughnessstringencystrictnessrigorrigourdisciplineseveritycorrectnessharshnessprecision Back to today's word