off base

Adjective
1. located outside a military base; "off-base housing"
(similar) peripheral

inaccurate He was really off base on his estimate of next year`s budget.

Synonyms and related words:
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, wrongful
  

ERRATO. SBAGLIATO. SBALLATO. IMPROVVISATO. ALLA SPROVVISTA. IMPREPARATO. COMPLETAMENTE FUORI STRADA

Eng: off base
Urdu: غَلَط فہمی کا شِکار ۔