'Utterly' definitions:

Definition of 'utterly'

From: WordNet
adverb
Completely and without qualification; used informally as intensifiers; "an absolutely magnificent painting"; "a perfectly idiotic idea"; "you're perfectly right"; "utterly miserable"; "you can be dead sure of my innocence"; "was dead tired"; "dead right" [syn: absolutely, perfectly, utterly, dead]

Definition of 'Utterly'

From: GCIDE
  • Utterly \Ut"ter*ly\, adv. In an utter manner; to the full extent; fully; totally; as, utterly ruined; it is utterly vain. [1913 Webster]