sincerity

As an adjective heartfelt

is felt or believed deeply and sincerely.

As a noun sincerity is

the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

Probity is a related term of sincerity.

As nouns the difference between probity and sincerity

is that probity is integrity while sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

Plain-dealing is a related term of sincerity.

As a noun sincerity is

the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As nouns the difference between severity and sincerity

is that severity is the state of being severe while sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As a noun sincerity

is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As an adjective punctual is

prompt or on time.

Sincerism is often a misspelling of sincerity.

Sincerism has no English definition.

As a noun sincerity

is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As nouns the difference between frankness and sincerity

is that frankness is the state of being frank; candour; honesty while sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As nouns the difference between sincerity and fidelity

is that sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense while fidelity is faithfulness to one's duties.

As nouns the difference between silence and sincerity

is that silence is the lack of any sound while sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.

As a verb silence

is to make (someone or something) silent.

As an interjection silence

is a common imperative instructing the addressed to remain silent.

As nouns the difference between sincerity and navet

is that sincerity is the quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense while navet is a kind of prickly pear cactus, perhaps.