(a.) Causing discomfort, uneasiness, or annoyance; hindering progress\ or success; uncomfortable; disadvantageous; incommodious; inopportune; as, an inconvenient house, garment, arrangement, or time.

annoying awkward bothersome bulky burdensome clumsy contrary crosswise cumbersome detrimental disadvantageous discommodious disturbing embarrassing hulking hulky ill-considered ill-seasoned ill-timed impractical improper inappropriate inauspicious incommodious inexpedient infelicitous inopportune intempestive intrusive irksome irrelevant irritating late mal a propos malapropos mistimed off base onerous out of line out of phase out of time perverse pestiferous ponderous prejudicial premature too late too soon troublesome unbefitting unfavorable unfit unfitting unfortunate unhandy unhappy unlucky unmanageable unpropitious unready unripe unseasonable unsettling unsuitable untimely untoward unwieldy upsetting wrong