indeterminably

/ˌɪndɪˈtɜːrmɪnəbli/
adverb
  1. In a way that cannot be definitely known, measured, or fixed.
    • The exact number of stars in the universe is indeterminably large.
    • Her future plans remained indeterminably vague, even to her closest friends.
    • The cost of the project was indeterminably high due to fluctuating material prices.
Antonyms
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