English Antonyms Practice Test 6

Superficial : not thorough, deep, or complete; cursory.
Profound : (of a state, quality, or emotion) very great or intense.
Difficult : needing much effort or skill to accomplish, deal with, or understand.
Secretive : (of a person or an organization) inclined to conceal feelings and intentions or not to disclose information.
Mystical : relating to mystics or religious mysticism.

Antonym of Superficial is Profound