Sinceriously 

Sincere and seriously smooshed together.

I'm sinceriously sorry about what happend after the break up

Sinceriously by Turboflamas May 30, 2010

Sinceriously 

Super seriously sincere, genuine or authentic. For reals

"No brah, but sinceriously I mean it!" I believed her because she seemed sincerious.

Sinceriously by JmuthafukinKroh January 10, 2025

Sinceriously 

Seriously sincere

I sinceriously apologize on how I acted the other day!

Sinceriously by Lofioso610 May 27, 2025

Sinceriously 

Seriously sincere

I Sinceriously apologize for how I acted the other day!

Sinceriously by Lofioso610 May 27, 2025

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

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

sneriously

a cooler way of saying seriously.
the best way seriously could be said.

invented by sara boland(:

Tom: "Dude, i got so wasted last night"

Bill: "Sneriously?"

Tom: "Sneriously, d00d."

Bill: "HMPH :|"

sneriously by Sara Vengeance January 4, 2009