rea·son·a·ble / ˈrēz(ə)nəbəl/ • adj. 1. (of a person) having sound judgment; fair and sensible: no reasonable person could have objected. ∎  based on good sense: it seems a reasonable enough request the guilt of a person on trial must be proved beyond reasonable doubt. ∎ archaic (of a person or animal) able to think, understand, or form judgments by a logical process: man is by nature reasonable.2. as much as is appropriate or fair; moderate: a police officer may use reasonable force to gain entry. ∎  fairly good; average: the carpet is in reasonable condition. ∎  (of a price or product) not too expensive: a restaurant serving excellent food at reasonable prices they are lovely shoes and very reasonable.DERIVATIVES: rea·son·a·ble·ness n.

REASONABLE

Suitable; just; proper; ordinary; fair; usual.

The term reasonable is a generic and relative one and applies to that which is appropriate for a particular situation.

In the law of negligence, the reasonable person standard is the standard of care that a reasonably prudent person would observe under a given set of circumstances. An individual who subscribes to such standards can avoid liability for negligence. Similarly a reasonable act is that which might fairly and properly be required of an individual.