Found 2 items, similar to trueness.
English → English (WordNet) Definition: trueness trueness n : exactness of adjustment; “I marveled at the trueness of his aim”
English → English (gcide) Definition: Trueness Trueness \True"ness\, n. The quality of being true; reality; genuineness; faithfulness; sincerity; exactness; truth. [1913 Webster]