Noun
1. an earnest and sincere feeling
2. the quality of being open and truthful; not deceitful or hypocritical;
"his sincerity inspired belief""they demanded some proof of my sincerity"3. a quality of naturalness and simplicity;
"the simple sincerity of folk songs"4. the trait of being serious;
"a lack of solemnity is not necessarily a lack of seriousness"- Robert Rice