• IPA: /sɪnˈsɛɹəti/

sincerity

1. The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense.
   • c. 1603–1604, William Shakespeare, “The Tragedie of Othello, the Moore of Venice”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act II, scene iii]:

     I protest, in the sincerity of love.

   • Sincerity is a duty no less plain than important.

   • Sincerity is everything. If you can fake that, you’ve got it made.

• honesty
• sincereness

• insincerity

• sincere

• French: sincérité
• German: Aufrichtigkeit, Ehrlichkeit
• Italian: sincerità
• Portuguese: sinceridade
• Russian: и́скренность
• Spanish: sinceridad