(1)the quality of being open and truthful; not deceitful or hypocritical; "his sincerity inspired belief"; "they demanded some proof of my sincerity"
(2)率直で誠実な性質
(3)うそつきでない、または偽善的でない
(4)an earnest and sincere feeling
(5)まじめで誠実な気持ち