Noun
Used other than figuratively or idiomatically: see conservative, force.
(physics) A force the work done by which is independent of the path taken and depends only on the initial and final positions of the object; equivalently, the total work done by a conservative force is equal to zero when the path taken is a closed loop.
Source: en.wiktionary.orgGenerals are usually a conservative force who can be relied on to oppose social change. Isaac Asimov