Source : Webster's Revised Unabridged Dictionary (1913)

Indelicate \In*del"i*cate\, a. [Pref. in- not + delicate: cf. F.
   ind['e]licat.]
   Not delicate; wanting delicacy; offensive to good manners, or
   to purity of mind; coarse; rude; as, an indelicate word or
   suggestion; indelicate behavior. --Macaulay. --
   {In*del"i*cate*ly}, adv.

   Syn: Indecorous; unbecoming; unseemly; rude; coarse; broad;
        impolite; gross; indecent; offensive; improper;
        unchaste; impure; unrefined.