'Significantly' definitions:

Definition of 'significantly'

(from WordNet)
adverb
In a statistically significant way; "the two groups differed significantly"
adverb
In a significant manner; "our budget will be significantly affected by these new cuts" [ant: insignificantly]
adverb
In an important way or to an important degree; "more importantly, Weber held that the manifold meaning attached to the event by the social scientist could alter his definition of the concrete event itself" [syn: importantly, significantly]

Definition of 'Significantly'

From: GCIDE
  • Significantly \Sig*nif"i*cant*ly\, adv. In a significant manner. [1913 Webster]