Tardive refers to something that is late in appearing. For example, the characteristic symptom of a disease, such as a lesion, may occur a long period after exposure. A Tardive symptom could be contrasted with an acute symptom, which appears soon after injury or exposure to disease, although it may also mean a symptom that is gone quickly. On the other hand, chronic conditions are not late-appearing, they are long-lasting. In the medical field, Tardive is most commonly associated with Tardive neurological disorders, such as Tardive dyskinesia, Tardive dystonia, Tardive psychosis and Tardive akathisia. These disorders arise from the long-term usage of anti-psychotic medication. In addition, there is Eisenmenger's syndrome, also called Tardive cyanosis. However, it is unrelated to the other disorders.

Source:Wikipedia.org