The meaning of PSYCHOLOGICAL is of or relating to psychology. How to use psychological in a sentence. of or relating to psychology; of, relating to, or occurring in the mind : mental… See the full definition. Games; Word of the Day; Grammar; Wordplay; New Slang; Rhymes; Word Finder; Thesaurus; Join MWU; More. Games ...

PSYCHOLOGICAL definition: 1. relating to the human mind and feelings: 2. (of an illness or other physical problem) caused by…. Learn more.