Apparent (adjective)

1. Clearly visible or understood; obvious.
2. Seeming to be true, though not necessarily so.

Origin:

Late middle english: from old french aparant, from latin apparent- "appearing, standing out", from the verb apparere.

Examples:

1. The solution to the problem was not apparent.
2. The cause of the accident was not apparent.
3. The thief's identity was not apparent.
4. It was apparent that he was lying.
5. The advantages of the new plan were not apparent at first.