Source : Webster's Revised Unabridged Dictionary (1913)

Point-blank \Point`-blank"\, adv.
   In a point-blank manner.

         To sin point-blank against God's word.   --Fuller.

Point-blank \Point`-blank"\, n. [F. point point + blanc white.]
   1. The white spot on a target, at which an arrow or other
      missile is aimed. [Obs.] --Jonson.

   2. (Mil.)
      (a) With all small arms, the second point in which the
          natural line of sight, when horizontal, cuts the
          trajectory.
      (b) With artillery, the point where the projectile first
          strikes the horizontal plane on which the gun stands,
          the axis of the piece being horizontal.

Point-blank \Point`-blank"\, a.
   1. Directed in a line toward the object aimed at; aimed
      directly toward the mark.

   2. Hence, direct; plain; unqualified; -- said of language;
      as, a point-blank assertion.

   {Point-blank range}, the extent of the apparent right line of
      a ball discharged.

   {Point-blank shot}, the shot of a gun pointed directly toward
      the object to be hit.

Source : WordNet®

point-blank
     adj 1: characterized by directness in manner or speech; without
            subtlety or evasion; "blunt talking and straight
            shooting"; "a blunt New England farmer"; "I gave them
            my candid opinion"; "forthright criticism"; "a
            forthright approach to the problem"; "tell me what you
            think--and you may just as well be frank"; "it is
            possible to be outspoken without being rude";
            "plainspoken and to the point"; "a point-blank
            accusation" [syn: {blunt}, {candid}, {forthright}, {frank},
             {free-spoken}, {outspoken}, {plainspoken}, {straight-from-the-shoulder}]
     2: close enough to go straight to the target; "point-blank
        range"; "a point-blank shot"
     adv : in a direct and unequivocal manner; "I asked him point-blank
           whether he wanted the job"