Word Study
off base
THESAURUS
off base
aberrant, abnormal, abominable, atrocious, bad, criminal, delinquent, deviant, disgraceful, disorderly, disruptive, evil, hardly the thing, ignominious, ill-considered, ill-seasoned, ill-timed, illegal, improper, inappropriate, inauspicious, inconvenient, incorrect, indecorous, inexpedient, infamous, infelicitous, inopportune, intempestive, intrusive, irrelevant, late, mal a propos, malapropos, misbehaving, mistimed, naughty, not done, not respectable, not the thing, off base, off-color, out of line, out of phase, out of time, out-of-line, premature, rowdy, rowdyish, ruffianly, sacrilegious, scandalous, shameful, shameless, sinful, terrible, too late, too soon, unbefitting, unbehaving, undue, unfavorable, unfit, unfitting, unfortunate, unhandy, unhappy, unlawful, unlucky, unpropitious, unready, unrighteous, unripe, unseasonable, unseemly, unsuitable, untimely, untoward, wicked, wrong, wrongfulFor further exploring for "off base" in Webster Dictionary Online