Definitions for "dated"
still in use, but generally only by older people, and considered unfashionable or superseded, particularly by younger people. Examples: wireless (in sense "broadcast radio tuner"), groovy, gramophone, gay (in the senses of "bright", "happy", etc.) Compare with obsolete and archaic This definition is currently under active debate in Wiktionary:Obsolete and archaic terms[ edit
A matchcover category with a date (month, day and year or year along) appearing somewhere (inside or outside). They were usually issued by a business or organization to celebrate an anniversary or special event. Not included in this category are matchcovers stating "Since 1905"; however, "From 1926 to 1956" is acceptable. (See Anniversary).
marked by features of the immediate and usually discounted past.
A date mark added to a piece of art or decorative item. When selling, only use the word "dated" if the mark is authentic to the date it represents.
Keywords:  stamped, bearing, documents
bearing a date; as, dated and stamped documents.