'Excruciatingly' definitions:

Definition of 'excruciatingly'

From: WordNet
adverb
In a very painful manner; "the progress was agonizingly slow" [syn: agonizingly, excruciatingly, torturously]

Definition of 'Excruciatingly'

From: GCIDE
  • Excruciating \Ex*cru"ci*a`ting\ Torturing; racking. "Excruciating pain." --V. Knox. "Excruciating fears." --Bentley -- {Ex*cru"ci*a`ting*ly}, adv. [1913 Webster]