1) Appallingly 2) Atrociously 3) Awfully 4) Badly 5) Disgustingly 6) Hideously 7) Horrendously 8) Horribly 9) Horrifically 10) In a dreadful manner 11) Of a dreadful kind 12) Terribly 13) Unbearably 14) Unpleasantly 15) Unspeakably 16) Very 1) Awfully 2) Extremely 3) Horribly 4) Indescribably 5) Shamefully 6) Terribly 7) Unbearably 
• (adv.) In a dreadful manner; terribly.
Dread'ful·ly adverb In a dreadful manner; terribly. Dryden. 
[adv] - of a dreadful kind
awfully 1 horribly adverb of a dreadful kind; `there was a dreadfully bloody accident on the road this morning`
in a dreadful way: The pain has increased dreadfully. · very; extremely: Sorry to be so dreadfully late.