Creationism is a theological concept. That does not mean that nature is not owing to a creator who can communicate with mankind.
Can I refer those who say that creationists are not anti-science to you for clarification about the theory of evolution and the general subject of science:
"Only it posulates that above man is this god-like being called The scientist. He serves as a kinbd of oracle of this supposed body of knowledge known as SCIENCE."
Creationism is a Biblical truth unlike evolution which is just a theory and really a lie.