(a.) Inconvenient; unsuitable; untimely; as, an inopportune remark\.

bad futile ill-advised ill-considered ill-seasoned ill-suited ill-timed impolitic improper inadvisable inappropriate inapt inauspicious incongruous inconvenient inept inexpedient infelicitous intempestive intrusive irrelevant late mal a propos malapropos mistimed off base out of line out of phase out of place out of time premature too late too soon unbefitting undesirable unfavorable unfit unfitting unfortunate unhandy unhappy unlucky unmeet unprofitable unpropitious unready unripe unseasonable unseemly unsuitable untimely untoward unwise wrong