<unk>  is an emotion that is typically associated with things that are perceived as unclean, inedible, or infectious.  In The Expression of the Emotions in Man and Animals, Charles Darwin wrote that<unk>  refers to something revolting. Primarily in relation
to the sense of taste, as actually perceived or vividly imagined; and secondarily to anything which causes a similar feeling, through the sense of smell, touch, and even of eyesight.<unk>  is one of the basic emotions of Robert Plutchik's theory of emotions.<unk>  invokes a characteristic facial expression, one of Paul Ekman's six universal facial expressions of emotion. It is also associated with a fall in heart rate, in contrast, for example, to fear or anger.<unk>  may be further subdivided into physical<unk> , associated with physical or metaphorical uncleanness, and moral<unk> , a similar feeling related to courses of action.
Disgust
Perseveration
Jealousy
Hallucination
Aversion to happiness
Sapience
Euphoria
Emotional detachment