Source : Webster's Revised Unabridged Dictionary (1913)

Narrow \Nar"row\, v. t. [imp. & p. p. {Narrowed}; p. pr. & vb.
   n. {Narrowing}.] [AS. nearwian.]
   1. To lessen the breadth of; to contract; to draw into a
      smaller compass; to reduce the width or extent of. --Sir
      W. Temple.

   2. To contract the reach or sphere of; to make less liberal
      or more selfish; to limit; to confine; to restrict; as, to
      narrow one's views or knowledge; to narrow a question in
      discussion.

            Our knowledge is much more narrowed if we confine
            ourselves to our own solitary reasonings. --I.
                                                  Watts.

   3. (Knitting) To contract the size of, as a stocking, by
      taking two stitches into one.

Source : WordNet®

narrowed
     adj 1: reduced in size as by squeezing together; "his narrowed
            eyes"
     2: made narrow; limited in breadth; "narrowed arteries impair
        blood circulation"; "a narrowed view of the world"
     3: having the opening reduced squeezed