Most phantom is a phrase that refers to something that is elusive, mysterious, or inexplicable. Antonyms for this phrase could include terms like concrete, evident, tangible, or visible. If something is concrete, it suggests that it is clear, confirmed, and verifiable. Meanwhile, evident implies that something is plain and noticeable. Something that is tangible is touchable and can be experienced physically. Finally, if something is visible, it is perceivable by sight. While most phantom carries an air of intrigue, these antonyms suggest qualities that are straightforward and straightforward to discern.