adj.1 of, relating to, or arising in the mind.
2 of or relating to psychology.
3 colloq. (of an ailment etc.) having a basis in the mind; imaginary (her cold is psychological).
Phrases and idioms:
psychological block a mental inability or inhibition caused by emotional factors. psychological moment the most appropriate time for achieving a particular effect or purpose. psychological warfare a campaign directed at reducing an opponent's morale.
Derivatives:
psychologically adv.