Faintly

from WordNet (r) 3.0 (2006)

faintly
    adv 1: to a faint degree or weakly perceived; "between him and
           the dim light a form was outlined faintly"; "stars
           shining faintly through the overcast"; "could hear his
           distant shouts only faintly"; "the rumors weren't even
           faintly true"

from The Collaborative International Dictionary of English v.0.48

Faintly \Faint"ly\, adv.
   In a faint, weak, or timidmanner.
   [1913 Webster]