sincere
/sɪnˈsɪər/ adjectiveDefinition
› honest and saying or showing what you really feel or believe: He seems to be sincere. → Opposite insincere
sincere apologies/thanks, etc formal › used to add emphasis when you are expressing a feeling: The family wishes to express their sincere thanks to all the staff at the hospital.
sincerity /sɪnˈserəti/ noun [U] › No one doubted his sincerity.(Definition of sincere adjective from the Cambridge Learner's Dictionary
© Cambridge University Press)
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