: having knowledge gained by close association, study, or experience—usually + in
an attorney well versed in corporate law [=an attorney who is knowledgeable about corporate law]At these points Dr Shepherd seemed very much the newcomer, not yet versed in the institution's codes … Helen Garner… an eminent naturalist, a gentleman most completely versed in the knowledge of rocks and minerals … Anthony TrollopeClive used to say that to be a successful moth hunter you need not be a specialist, but many specialists: a biologist, a botanist, a chemist, an ecologist, a meteorologist …—and well versed in Latin. Poppy Adams