Source : Webster's Revised Unabridged Dictionary (1913)

Impolitic \Im*pol"i*tic\, a. [Pref. im- not + politic; cf. F.
   impolitique.]
   Not politic; contrary to, or wanting in, policy; unwise;
   imprudent; indiscreet; inexpedient; as, an impolitic ruler,
   law, or measure.

         The most unjust and impolitic of all things, unequal
         taxation.                                --Burke.

   Syn: Indiscreet; inexpedient; undiplomatic.

Source : WordNet®

impolitic
     adj : not politic; "an impolitic approach to a sensitive issue"
           [ant: {politic}]