Anachronistic

(a.) Erroneous in date; containing an anachronism.

Thesaurus Entries

ahead of time, antedated, beforehand, behind time, behindhand, dated, early, foredated, late, metachronistic, misdated, mistimed, out of date, out of season, overdue, parachronistic, past due, postdated, prochronistic, tardy, unpunctual, unseasonable