"Das ist nicht schlimm" should be also added.
Report it, please.
Why not "das ist keine schlecht"?
kein(e) is before a noun.
schlecht is an adjective, not a noun.
keine schlecht would be like "not a bad" or "no bad".
This could be, "Das ist nicht schlimm." Right?
I suppose so. Usually schlimm has a slightly stronger meaning than schlecht, but I think it fits here and would be accepted if you reported it.
How to pronounce schlecht
[ʃlɛçt]
30/12/18 - Das ist nicht schlimm not accepted yet, reporting
"Das ist schlecht nicht" Is that correct too?
No - that word order is wrong.
Why?
nicht schlecht should have the nicht before the adjective schlecht.