Synonyms and related words :
ahead of time, anachronistic, antedated, beforehand, behind time, behindhand, dated, early, foredated, ill-considered, ill-seasoned, ill-timed, improper, inappropriate, inauspicious, inconvenient, inexpedient, infelicitous, inopportune, intempestive, intrusive, irrelevant, late, mal a propos, malapropos, metachronistic, misdated, off base, out of date, out of line, out of phase, out of season, out of time, overdue, parachronistic, past due, postdated, premature, prochronistic, tardy, too late, too soon, unbefitting, unfavorable, unfit, unfitting, unfortunate, unhandy, unhappy, unlucky, unpropitious, unpunctual, unready, unripe, unseasonable, unsuitable, untimely, untoward, wrong