Source : Webster's Revised Unabridged Dictionary (1913)

Superior \Su*pe"ri*or\, a. [L., compar. of superus being above,
   fr. super above, over: cf. F. sup['e]rieur. See {Super-}, and
   cf. {Supreme}.]
   1. More elevated in place or position; higher; upper; as, the
      superior limb of the sun; the superior part of an image.

   2. Higher in rank or office; more exalted in dignity; as, a
      superior officer; a superior degree of nobility.

   3. Higher or greater in excellence; surpassing others in the
      greatness, or value of any quality; greater in quality or
      degree; as, a man of superior merit; or of superior
      bravery.

   4. Beyond the power or influence of; too great or firm to be
      subdued or affected by; -- with to.

            There is not in earth a spectacle more worthy than a
            great man superior to his sufferings. --Spectator.

   5. More comprehensive; as a term in classification; as, a
      genus is superior to a species.

   6. (Bot.)
      (a) Above the ovary; -- said of parts of the flower which,
          although normally below the ovary, adhere to it, and
          so appear to originate from its upper part; also of an
          ovary when the other floral organs are plainly below
          it in position, and free from it.
      (b) Belonging to the part of an axillary flower which is
          toward the main stem; posterior.
      (c) Pointing toward the apex of the fruit; ascending; --
          said of the radicle.

   {Superior conjunction}, {Superior planets}, etc. See
      {Conjunction}, {Planet}, etc.

   {Superior figure}, {Superior letter} (Print.), a figure or
      letter printed above the line, as a reference to a note or
      an index of a power, etc; as, in x^{2} + y^{n}, 2 is a
      superior figure, n a superior letter. Cf. {Inferior
      figure}, under {Inferior}.

Superior \Su*pe"ri*or\, n.
   1. One who is above, or surpasses, another in rank, station,
      office, age, ability, or merit; one who surpasses in what
      is desirable; as, Addison has no superior as a writer of
      pure English.

   2. (Eccl.) The head of a monastery, convent, abbey, or the
      like.

Source : WordNet®

superior
     adj 1: of high or superior quality or performance; "superior wisdom
            derived from experience"; "superior math students"
            [ant: {inferior}]
     2: of or characteristic of high rank or importance; "a superior
        officer" [ant: {inferior}]
     3: (sometimes followed by `to') not subject to or influenced
        by; "overcome by a superior opponent"; "trust magnates who
        felt themselves superior to law"
     4: written or printed above and to one side of another
        character [syn: {superscript}] [ant: {subscript}, {adscript}]
     5: having an orbit farther from the sun than the Earth's orbit;
        "Mars and Jupiter are the closest in of the superior
        planets" [ant: {inferior}]
     6: having a higher rank; "superior officer" [syn: {ranking(a)},
         {higher-ranking}]
     7: (often followed by `to') above being affected or influenced
        by; "he is superior to fear"; "an ignited firework
        proceeds superior to circumstances until its blazing
        vitality fades" [syn: {superior(p)}]

superior
     n 1: one of greater rank or station or quality [syn: {higher-up},
           {superordinate}] [ant: {inferior}]
     2: the head of a religious community
     3: a combatant who is able to defeat rivals [syn: {victor}, {master}]
     4: the largest freshwater lake in the world; the deepest of the
        Great Lakes [syn: {Lake Superior}]
     5: a town in northwest Wisconsin on Lake Superior across from
        Duluth
     6: a character or symbol set or printed or written above and
        immediately to one side of another character [syn: {superscript}]
        [ant: {subscript}]