Yes. If you accidentally disliked a profile, you can reverse your most recent Dislike using the Undo feature.
How to undo a Dislike?
To undo your most recent Dislike, tap the back arrow at the top of the screen, next to the notification icon.
Important to know:
You can only undo your most recent Dislike.
If you take another action after disliking a profile, that Dislike can no longer be reversed.
Undo applies only to Dislikes, not Likes or Matches.