unscramble

verbs

make intelligible
"Can you unscramble the message?"
unscramble
antonym
scramble
is a type of (narrower)
cause to change; make different; cause a transformation
"The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
alter, change, modify
become or cause to become undone by separating the fibers or threads of
"unravel the thread"
unknot, unpick, unravel, unscramble, untangle