Synonyms of impossibly in English:

impossibly

adverb

  • 1 their entrance exam is impossibly difficult
    unreasonably, extremely, exceedingly, exceptionally, unduly, unnecessarily, ridiculously, overly
  • Reflections

    impossibly

    This is one of those adverbs that's formed from an adjective and can modify only modifiers, never verbs. Using these sorts of adverbs— impossibly fast, extraordinarily yummy, irreducibly complex—is an upscale educated speech tic that translates well to writing. Not only can the adverbs be as colorful/funny/snarky as you like, but the device is a neat way to up the formality of your prose without sacrificing personality; it makes the writer sound like an actual person, albeit a classy one. The big caveat is that you can't use these special-adverb-plus-adjective constructions more than once every few sentences or your prose starts to look like it's trying too hard.
    David Foster Wallace

    Definition of impossibly in:

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