Undoable
Part of speech: adjective
Definition: Not doable Able to be undone
Unrealizable
Part of speech: adjective
Definition: Not realizable; unable to be achieved or realized.
Undoable as an adjective is not doable while Unrealizable as an adjective is not realizable; unable to be achieved or realized.
Part of speech: adjective
Definition: Not doable Able to be undone
Part of speech: adjective
Definition: Not realizable; unable to be achieved or realized.
We hope you now know whether to use Undoable or Unrealizable in your sentence.