(photography) inadequate processing of film resulting in inadequate contrast state of inadequate development; "much poverty can be traced to the underdevelopment of industry
{i} insufficient or inadequate development; condition of not having fully or normally grown
An underdeveloped country or region does not have modern industries and usually has a low standard of living. Some people dislike this term and prefer to use developing. Underdeveloped countries should be assisted by allowing them access to modern technology. public-health problems in the underdeveloped world. = developing developed