Source : Webster's Revised Unabridged Dictionary (1913)

Inferiority \In*fe`ri*or"i*ty\, [Cf. F. inf['e]riorit['e].]
   The state of being inferior; a lower state or condition; as,
   inferiority of rank, of talents, of age, of worth.

         A deep sense of our own great inferiority. --Boyle.

Source : WordNet®

inferiority
     n 1: the state of being inferior [syn: {lower status}, {lower
          rank}]
     2: an inferior quality [syn: {low quality}] [ant: {superiority},
         {superiority}]
     3: the quality of being a competitive disadvantage [syn: {unfavorable
        position}]