That which has only an apparent existence; an apparition; a specter; a phantasm; a sprite; an airy spirit; an ideal image.
- Something apparently seen, heard, or sensed, but having no physical reality; a ghost or an apparition.
- Something elusive or delusive.
- An image that appears only in the mind; an illusion.
- Something dreaded or despised.
- Resembling, characteristic of, or being a phantom; illusive.
- Fictitious; nonexistent: phantom employees on the payroll.