impossibly
1. [ adverb ] in a manner or to a degree not possible of conceiving
Examples:

"he is impossibly idealistic"

Related terms: possibly impossible impossible
2. [ adverb ] to a degree impossible of achievement
Examples:

"long thought to be an impossibly difficult operation" "impossibly far from sources of supply"

Related terms: possibly impossible impossible
Similar spelling:   impossible
  imposingly
  impossibility
  imposing
  impassively
  imposition
  impassable