noun an heir apparent.
2. apparent ·adj clear or manifest to the understanding; plain; evident; obvious; known; palpable; indubitable.
3. apparent ·adj capable of being seen, or easily seen; open to view; visible to the eye; within sight or view.
4. apparent ·adj appearing to the eye or mind (distinguished from, but not necessarily opposed to, true or real); seeming; as the apparent motion or diameter of the sun.