1. Conformity to reality or actuality
   "The trueness of his account was never questioned";
   - truth, the true, verity
    
2. The quality of being loyal
   "Her trueness to her principles was unwavering";
   - loyalty
    
3. Exactness of adjustment
   "I marveled at the trueness of his aim"

See also: disloyal, false, loyal, true

Type of: accuracy, actuality, exactitude, exactness, faithfulness, fidelity, precision

Encyclopedia: Trueness