monstrously

comparative more monstrously · superlative most monstrously

1. In a monstrous manner.

   She went about the house in a state of real terror, and yet lied monstrously and wilfully, and invented many of the alarms she spread, and made many of the sounds we heard.

   1859, Charles Dickens, The Haunted House

   1 more example

   This does become monstrously antimusical in one scene: when Tchaikovsky’s music, softly depicting the sleeping palace (my favorite passage of this composer’s entire oeuvre, with its beautifully muffled oboe melody suggesting how beauty ripens in sleep like a chrysalis), is turned into an epic battle for the poor passive Prince, conducted between the wicked Carabosse, with her ghoulish minions, and the Lilac Fairy, with her elves.

   2007 June 4, Alastair Macaulay, “Wake Up, Princess, the Movies Are Calling”, in The New York Times