Noun

• S: (n) arrested development, fixation, infantile fixation, regression (an abnormal state in which development has stopped prematurely)
• S: (n) regression ((psychiatry) a defense mechanism in which you flee from reality by assuming a more infantile state)
• S: (n) regression, simple regression, regression toward the mean, statistical regression (the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x))
• S: (n) regression, regress, reversion, retrogression, retroversion (returning to a former state)
• direct hypernym / inherited hypernym / sister term
• S: (n) reversal (a change from one state to the opposite state) "there was a reversal of autonomic function"
• S: (n) change of state (the act of changing something into something different in essential characteristics)
• S: (n) change (the action of changing something) "the change of government had no impact on the economy"; "his change on abortion cost him the election"
• S: (n) action (something done (usually as opposed to something said)) "there were stories of murders and other unnatural actions"
• S: (n) act, deed, human action, human activity (something that people do or cause to happen)
• S: (n) event (something that happens at a given place and time)
• S: (n) psychological feature (a feature of the mental life of a living organism)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form