The definition of sincere is true or honest.(adjective)
An example of sincere is a friend who helps you without an expectation of you doing something for them in return.
See sincere in Webster's New World College Dictionary
Origin: MFr sincére < L sincerus, clean, pure, sincere
See sincere in American Heritage Dictionary 4
adjective sin·cer·er, sin·cer·est
Origin: Latin sincērus; see ker-2 in Indo-European roots.
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