Apparent
Something apparent can be clearly seen or understood, but it leaves a little more room for doubt or the possibility that things might not be exactly as they seem.
- There were apparent scratches on the table, but it was hard to tell if they were permanent.
- It became increasingly apparent that he wasn’t telling the whole truth.
Obvious
Something obvious is so clear and easy to understand that it’s practically impossible to miss.
It’s a strong term that implies there’s no room for doubt.
- The answer to the question was obvious, even to a kindergartener.
- There were obvious signs of wear and tear on the used car.
Analogy
- Think of obvious as a giant, flashing neon sign. There’s no way to miss it.
- Think of apparent as a regular light bulb. It provides illumination, but there might be shadows or things that aren’t quite clear.
Summary
In most cases, obvious or apparent are interchangeable. If you want to emphasize that something is completely undeniable, obvious is the stronger choice.