abominably abominably /əˈbɑːmɪnəbli/

adverb

1. In a terrible manner  ( abominably , abysmally , awfully , atrociously , rottenly , terribly , execrably )
   in a terrible manner
    She sings terribly
   she sings terribly
   
2. In an offensive and hateful manner  ( abominably , detestably , odiously , repulsively )
   in an offensive and hateful manner
    I don't know anyone who could have behaved so abominably
   I don't know anyone who could have behaved so abominably