inopportune(a = adj.all) - not opportune; "arrived at a most inopportune hour"; "an inopportune visit"
Antonym: opportune
Derived form noun inopportuneness1
Not opportune; inconvenient; unseasonable; as, an inopportune occurrence, remark, etc. [1913 Webster]
"No visit could have been more inopportune." [1913 Webster]
inopportune, adj. not appropriate, esp. as regards time; unseasonable.
Derivative:
inopportunely adv. inopportuneness n.
Etymology:
L inopportunus (as IN-(1), OPPORTUNE)
N inexpedience, inexpediency, undesirableness, undesirability, discommodity, impropriety, unfitness, inutility, disadvantage, inexpedient, undesirable, unadvisable, inadvisable, objectionable, inapt, ineligible, inadmissible, inconvenient, incommodious, discommodious, disadvantageous, inappropriate, unfit, ill-contrived, ill-advised, unsatisfactory, unprofitable, unsubservient, inopportune, out of place, in the wrong place, improper, unseemly, clumsy, awkward, cumbrous, cumbersome, lumbering, unwieldy, hulky, unmanageable, impedient, unnecessary, it will never do.
N untimeliness, intempestivity, unseasonableness, inexpedience, unsuitable time, improper time, unreasonableness, evil hour, contretemps, intrusion, anachronism, bad time, wrong time, inappropriate time, not the right occasion, unsuitable time, inopportune time, poor timing, ill-timed, mistimed, ill-fated, ill-omened, ill-starred, untimely, unseasonable, out of date, out of season, inopportune, timeless, intrusive, untoward, mal a propos, unlucky, inauspicious, infelicitous, unbefitting, unpropitious, unfortunate, unfavorable, unsuited, inexpedient, unpunctual, too late for, premature, too soon for, wise after the event, monday morning quarterbacking, twenty-twenty hindsight, inopportunely, as ill luck would have it, in an evil hour, the time having gone by, a day after the fair, after death the doctor, after meat mustard.