Sin‐cer″i‐ty (?), n. [L. sinceritas: cf. F. sincérité.] The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense; sincereness.
I protest, in the sincerity of love. Shak.
Sincerity is a duty no less plain than important. Knox.