a also psychical /ˈsaɪkɪkəl/ - used to describe strange mental powers and abilities (such as the ability to predict the future, to know what other people are thinking, or to receive messages from dead people) that cannot be explained by natural laws

b of a person :having strange and unnatural mental abilites :having psychic powers

also psychical :of or relating to the mind

[count] :a person who has strange mental powers and abilities (such as the ability to predict the future, to know what other people are thinking, or to receive messages from dead people) :a person who has psychic powers