All inertness antonyms

noun inertness

• employment — The condition of having paid work.
• energy — The strength and vitality required for sustained physical or mental activity.
• vigour — active strength or force.
• vigor — active strength or force.
• activity — Activity is a situation in which a lot of things are happening or being done.
• busyness — the quality or condition of being busy.
• life — the condition that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth through metabolism, reproduction, and the power of adaptation to environment through changes originating internally.
• liveliness — full or suggestive of life or vital energy; active, vigorous, or brisk: a lively discussion.
• work — Henry Clay, 1832–84, U.S. songwriter.