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.