sinseriously 

Emphatically exhibits the sincerity of your seriousness. The classic use is to close a letter with it.

Dear Urban Dictionary:


Thank you in advance for considering “sinseriously” in your Urban Dictionary.

Were sinseriously to be included in The Urban Dictionary, that would make my day, perhaps even my week.

Sinseriously,
Cyprus Denton Fekks

sinseriously by Cyprus Denton Fekks February 19, 2010

Sinseriously 

To be sincere and serious at the same time.

"Dude, sinseriously, im sorry"

Sinseriously by LilRayRay August 18, 2008

sinseriously 

"sinseriously" is a super fun loving word that can be used to sign a card with. It is a great way to let someone know how much you care about them and that you are serious and sincere about everything you wrote on a letter. It is a cherry on top.

Thanks for being my friend and i hope you enjoy your present

"Sinseriously", Joe

sinseriously by valkayerie July 9, 2011

Sinseriously 

Being seriously sincere. Sincere & serious about it.

girl: are you serious? guy: Sinseriously !

Sinseriously by Berjmaster November 27, 2015

Sinceriously 

1. The ability to speak freely, openly and honestly about anything; if you're going to say something, say it sinceriously.

2. To initiate any action while spreading as much good karma as possible.

When I say this I say it sinceriously.

I'm going to sinceriously raise as much money for charity as possible.

Sinceriously by Gingey87 January 17, 2015

sneeriously 

When you're trying to really convince someone of some piece of possible bullshit you're trying to feed them.

"Sneeriously man, I didn't mean to fuck your sister."

sneeriously by sincarnato August 27, 2008

Sinceriously 

1. The ability to speak freely, openly and honestly; about anything: if you're going to say something, say it sinceriously.

2. To initiate any action while spreading as much good karma as possible.

1. The Green Arrow normaly kept to himself, but he spoke about his problems sinceriously.

2. N8 and Timmy spoke Sinceriously when rapping in their single "Back Streets" to their upcoming Initation EP.

3.

Sinceriously by Nathan N8 Mitchell January 30, 2015