'Impossibly' definitions:

Definition of 'impossibly'

adverb

To a degree impossible of achievement; "long thought to be an impossibly difficult operation"; "impossibly far from sources of supply" [ant: possibly]

Definition of 'Impossibly'

From: GCIDE

Impossibly \Im*pos"si*bly\, adv. Not possibly. --Sir. T. North. [1913 Webster]

Words containing 'Impossibly'

Impossibilities,
Impossibility,
Impossible,
impossibleness,
Impossible quantity,
Logical impossibility,
impossible action,
mission impossible