Source : Webster's Revised Unabridged Dictionary (1913)

Dimly \Dim"ly\, adv.
   In a dim or obscure manner; not brightly or clearly; with
   imperfect sight.

Source : WordNet®

dimly
     adv 1: in a dim indistinct manner; "we perceived the change only
            dimly" [syn: {indistinctly}]
     2: in a manner lacking interest or vitality; "a palely
        entertaining show" [syn: {pallidly}, {palely}]