Here are examples of the word/phrase "cryptically" used in a sentence and paraphrased in a sentence...
The bright white moon cryptically turned red.
The bright white moon mysteriously turned red.
I tried to reverse engineer the program, but it was coded too cryptically.
I tried to reverse engineer the program, but it was coded too abstrusely.
The bird is cryptically flying without wings.
The bird is inscrutably flying without wings.
Other Examples...