Extensive and Prolonged

Extensive adjective - Having considerable extent.

Prolonged and extensive are semantically related in long topic. In some cases you can use "Prolonged" instead an adjective "Extensive", when it comes to topics like duration, lengthy.

Nearby Words: extend, extension, extensively, extensible, extender

Prolonged adjective - Relatively long in duration; tediously protracted.

Extensive and prolonged are semantically related in long topic. Sometimes you can use "Extensive" instead an adjective "Prolonged", if it concerns topics such as duration, lengthy.

Nearby Words: prolongation, prolonging