Source : Webster's Revised Unabridged Dictionary (1913)

Objectionable \Ob*jec"tion*a*ble\, a.
   Liable to objection; likely to be objected to or disapproved
   of; offensive; as, objectionable words. --
   {Ob*jec"tion*a*bly}, adv.

Source : WordNet®

objectionable
     adj 1: causing disapproval or protest; "a vulgar and objectionable
            person" [syn: {obnoxious}, {unpleasant}]
     2: liable to objection or debate; used of something one might
        take exception to; "a thoroughly unpleasant highly
        exceptionable piece of writing"; "found the politician's
        views objectionable" [syn: {exceptionable}]