post·im·pres·sion·ism 
(pōst′ĭm-prĕshə-nĭz′əm)
(pōst′ĭm-prĕshə-nĭz′əm)n.
A school of painting in France in the late 1800s that rejected the objective naturalism of impressionism and used form and color in more personally expressive ways.
post′im·pression·ist adj. & n.
post′im·pres′sion·istic adj.