Source : Webster's Revised Unabridged Dictionary (1913)

Belittle \Be*lit"tle\, v. t. [imp. & p. p. {Belittled}; p. pr. &
   vb. n. {Belittling}.]
   To make little or less in a moral sense; to speak of in a
   depreciatory or contemptuous way. --T. Jefferson.

Source : WordNet®

belittle
     v 1: belittle; "Don't belittle his influence" [syn: {minimize}, {denigrate},
           {derogate}]
     2: express a negative opinion of; "She disparaged her student's
        efforts" [syn: {disparage}, {pick at}] [ant: {flatter}]
     3: lessen the authority, dignity, or reputation of; "don't
        belittle your colleagues" [syn: {diminish}]