Does this sentence' That is so incredulous' make sense? [closed]

Does this sentence make sense? That is so incredulous, I am not sure.

You have the wrong usage for incredulous which is applied to people.

The Oxford Dictionaries has

incredulous
ADJECTIVE
(of a person or their manner) unwilling or unable to believe something.
Journalists were even more incredulous when the fishermen said it was a good deal and they were happy about it.

I think the word you want is

incredible
ADJECTIVE
1 Impossible to believe.
an almost incredible tale of triumph and tragedy

or the informal use given

2.1 informal Very good; wonderful.
I was mesmerized: she looked so incredible