What sin is unforgivable in Islam?

[BetterDaysAhead]

I heard anything can be forgive by allah if you deeply repent, even shirk which surprised me since I always thought shirk was unforgivable

 

[sambuusi]

the reason shirk is said to be unforgivable is because if you die with any major shirk, you're going straight to Hell forever
so basically, you have to repent sincerely before the time of death comes
other sins, Allah can choose to forgive you and if you still have tawheed, you won't be in Hell forever (and the Prophet SAWS can intercede for you)

 

[Juke]

Suicide, can't ask for forgiveness when you're dead

 

[Hybrid()]

committing a homicide is often unforgivable even if you go to xag'

 

[Nåture]

Shirk is the greastest of all sins. But then again all sins are bad