So remarkable as to elicit disbelief
So unusual as to suggest the supernatural
Heaven is a perfectly marvelous place.
They were both great kids with a marvelous future.
Even using extremely primitive technology, we have made marvelous progress.
"The girl that rules the marvelous Land of Oz," was the reply.
Think of a recluse who finds herself in possession of a marvelous gift, through no action on her part.