an earnest and sincere feeling
"She spoke with such sincerity that even her critics couldn't help but feel moved by her earnest appeal for peace."
the quality of being open and truthful; not deceitful or hypocritical
"his sincerity inspired belief"
"they demanded some proof of my sincerity"
a quality of naturalness and simplicity
"the simple sincerity of folk songs"
the trait of being serious
"a lack of solemnity is not necessarily a lack of seriousness"
The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.
"Her apology carried such deep sincerity that everyone immediately believed she truly regretted her mistake."