In a sincere manner, in any sense of the word sincere; wholly; purely; with truth; truly; really.

adverb. Purely; without alloy.

adverb. Honestly; unfeignedly; without dissimulation.

adverb. In a sincere or earnest manner; honestly.

adverb. A conventional formula for ending a letter, used when the salutation addresses the person for whom the letter is intended by his or her name.

adverb. written formula for ending a letter

adverb. with sincerity; without pretense

"Before you buy a bunch of the high-power Garrett or BB ammo, bear in mind that even with a scope this rifle weighs only 8 ½ pounds, and it really, most sincerely, is going to kick."

austerely  cavalierly  clearly  dearly  merely  

earnestly  genuinely  honestly  purely  truthfully