Preposition: of

• heart: I long to live in restful sincerity of heart.

• purpose: We care only for sincerity of peaceful purpose attested by deeds.

• people: The sincerity of people in power always has me bemused.

• government: He felt that the sincerity of the Government must be called into question.

• man: She put forward a plan to test the sincerity of man.

Converse of subject

• impress: However, we were impressed by the sincerity of accounts.

Converse of object

• doubt: Never did it occur to the student to doubt the sincerity of the advisor.

• lack: When Pilate asked Jesus this question, it was a sarcastic question because it lacked sincerity.

• question: We do not question the sincerity of our political opponents.

• show: Then after 6 years, if the student showed sincerity and commitment he would be accepted.

• test: She put forward a plan to test the sincerity of man.

• see: When the people saw the sincerity of the program, the groups grew.

Adjective modifier

• utmost: Listen, " he looked into Howie's eyes with the utmost sincerity.

• godly: But every one must follow the dictates of his own conscience, in simplicity and godly sincerity.

• astonishing: There was no mistaking his astonishing sincerity, his painfully earnest endeavor to impart to her some rather unusual id.. .

• utter: We represent the King of kings and Lord of lords and must declare His message with utter sincerity and appropriate authority.

• apparent: But the funny remark made with apparent sincerity was not the only weapon in her humorous armory.

• absolute: I can state with absolute sincerity that the scheme has worked extremely well for me.

Modifies a noun

• cannot: People really connect with others who are sincere, and sincerity cannot be faked.

• condition: The physical presence of the witness is essential for an adequate assessment of the sincerity conditions of her oral statements.