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Từ điển Oxford Advanced Learner 8th
insincere
in·sin·cere BrE [ˌɪnsɪnˈsɪə(r)] NAmE [ˌɪnsɪnˈsɪr] adjective (disapproving)
saying or doing sth that you do not really mean or believe
•an insincere smile
Opp: ↑sincere
Derived Words: ↑insincerely ▪ ↑insincerity
Word Origin:
mid 17th cent.: from Latin insincerus, from in- ‘not’ + sincerus ‘sincere’.
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