Source : Webster's Revised Unabridged Dictionary (1913)

Starkly \Stark"ly\, adv.
   In a stark manner; stiffly; strongly.

         Its onward force too starky pent In figure, bone, and
         lineament.                               --Emerson.

Source : WordNet®

starkly
     adv 1: in a stark manner; "He was starkly unable to achieve
            coherence"
     2: in sharp outline or contrast; "the black walls rose starkly
        from the snow"
     3: in a blunt manner; "in starkly realistic terms"