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Definition of sincereness
sincereness
/sɪnˈsɪərnəs/
sin · cere · ness
Adverb:sincerely
•Adjective:sincere
sincereness Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Rare
Syllables
3
sincereness Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The quality or state of being sincere; honesty, genuineness, and freedom from hypocrisy or deceit.
Example
"The quiet sincereness of his apology convinced everyone in the room that he truly regretted his mistake."
Synonyms
View all synonyms for sincereness Antonyms
View all antonyms for sincerenessWord Nuance & Usage
While grammatically valid, 'sincereness' is rare in modern English; native speakers almost universally prefer the standard noun form 'sincerity'.
• Rhymes for sincereness
Cite this Entry
Wordmom. (2026). Definition of Sincereness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sincereness