Productive
Part of speech: adjective
Definition: Capable of producing something, especially in abundance; fertile yielding good or useful results; constructive Of, or relating to the creation of goods or services consistently applicable to any of an open set of words
Example sentence: Times of great calamity and confusion have been productive for the greatest minds. The purest ore is produced from the hottest furnace. The brightest thunder-bolt is elicited from the darkest storm.
Generative
Part of speech: adjective
Definition: Having the power of generating, propagating, originating, or producing.