Tinder didn't have a built-in feature that allowed users to see a list of profiles they've swiped left (no) on. Once you swipe left on someone, their profile is gone from your potential matches, and there's no direct way to retrieve it within the app.
However, there are a couple of things you can try if you accidentally swiped left on someone you're interested in:
Tinder Plus/Gold: If you have a Tinder Plus or Tinder Gold subscription, you can use the "Rewind" feature. It lets you undo your last swipe and go back to the previous profile you swiped left on. You can then swipe right (yes) on that person to indicate your interest.
Wait and hope: If you don't have a premium subscription or didn't use the "Rewind" feature in time, you can keep using the app regularly. There's a chance that the person you accidentally swiped left on may appear in your potential matches again at some point. Tinder's algorithm shows profiles based on various factors, so they might reappear after some time.
Social media search: If you remember their first name, age, or any other details from their profile, you can try searching for them on other social media platforms like Facebook, Instagram, or LinkedIn. If they have linked their Instagram account to their Tinder profile, you might find them that way. However, keep in mind that not everyone links their social media accounts, and it might not be a guaranteed method.
Remember that while using Tinder or any dating app, accidental swipes can happen to anyone. It's essential not to dwell on missed opportunities and keep an open mind to new potential matches. Focus on engaging with the profiles you come across and see where the conversations lead. Good luck!