Source : Webster's Revised Unabridged Dictionary (1913)

Burden \Bur"den\, v. t. [imp. & p. p. {Burdened}; p. pr. & vb.
   n. {Burdening}.]
   1. To encumber with weight (literal or figurative); to lay a
      heavy load upon; to load.

            I mean not that other men be eased, and ye burdened.
                                                  --2 Cor. viii.
                                                  13.

   2. To oppress with anything grievous or trying; to overload;
      as, to burden a nation with taxes.

            My burdened heart would break.        --Shak.

   3. To impose, as a load or burden; to lay or place as a
      burden (something heavy or objectionable). [R.]

            It is absurd to burden this act on Cromwell.
                                                  --Coleridge.

   Syn: To load; encumber; overload; oppress.

Source : WordNet®

burdened
     adj 1: bearing a heavy burden of work or difficulties or
            responsibilities; "she always felt burdened by the
            load of paper work" [ant: {unburdened}]
     2: bearing a physically heavy weight or load; "tree limbs
        burdened with ice"; "a heavy-laden cart"; "loaded down
        with packages" [syn: {heavy-laden}, {loaded down}]