Sincere | Mean of sincere in English Dictionary

/sɪnˈsiɚ/

• having or showing true feelings that are expressed in an honest way
1. He sounded sincere in his promises.
2. She seemed sincere in her commitment to finish school.
• genuine or real
1. She has a sincere interest in painting.
2. He showed a sincere concern for her health.
3. Her apology was sincere.
4. He made a sincere attempt/effort to quit smoking.
5. Please accept our sincere thanks.