›LAWallowed by law or done according to the rules of an organization or activity: Defense lawyers argued that such payments are legitimate and customary in newspaper deals.a legitimate business/company/traderlegitimate expenses/fees
›fair and honest: Concerns relating to employee fraud and other forms of malpractice were acknowledged as being legitimate.legitimate complaints/questions/reasons
legitimatelyadverb›Manufacturers legitimately argued that the ingredients of their products are subject to commercial confidentiality.