Definition of sincerely. : in a sincere or truthful way : with truth, genuineness, or straightforwardness apologizing sincerely I am sincerely sorry for your loss. George Clooney, a …

Sincerely definition, in a way that is genuine, earnest, or truthful: We sincerely hope you can accept our apology. See more.

ingenuously, innocently, naively. (or naïvely), naturally, unaffectedly, unfeignedly, unpretentiously.

sin·cere 1. Not feigned or affected; genuine: sincere indignation. 2. Being without hypocrisy or pretense; true: a sincere friend. 3. Archaic Pure; unadulterated.

Sincerity means being completely honest about what you mean, and only those who have sincerity should use the related word sincerely to describe their actions. If you sincerely want to swim in a lake, you’re not at all joking, which explains your bathing suit.

Britannica Dictionary definition of SINCERELY. 1. : genuinely or truly : in a sincere or truthful way. He sincerely apologized for breaking the vase.

sin·cere 1. Not feigned or affected; genuine: sincere indignation. 2. Being without hypocrisy or pretense; true: a sincere friend. 3. Archaic Pure; unadulterated.