noun.
The quality or condition of being sincere; genuineness, honesty, and freedom from duplicity.
The Century Dictionary and Cyclopedia
noun.
The state or character of being sincere.
noun.
Freedom from duplicity, deceit, or falsehood; honesty; truthfulness.
noun.
Integrity; uprightness; faithfulness.
noun.Synonyms See sincere.
the GNU version of the Collaborative International Dictionary of English
noun.
The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense; sincereness.