Longman Dictionary of Contemporary English - psychological

~ adj 1 connected with the way that people's minds work and the way that this affects their behaviour 2 illness, fears etc that are psychological are in someone's mind and are not real  (Max says he's got some sort of virus, but I'm sure it's psychological.) 3 psychological warfare behaviour intended to make your opponents less confident 4 the psychological moment informal the exact time in a situation when you have the best chance to achieve what you want - psychologically adv  (psychologically disturbed | Psychologically (=from a psychological point of view) it's a good idea to praise a child for their effort.)