unimpeachably
  (ad.)無可指責地
  Un·im·peach·a·ble a. Not impeachable; not to be called in question; exempt from liability to accusation; free from stain, guilt, or fault; irreproachable; blameless; as, an unimpeachable reputation; unimpeachable testimony. --Burke. -- Un*im*peach*a*ble*ness, n. -- Un*im*peach*a*bly, adv.
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  unimpeachably
       adv : without question; "Fred Winter is unquestionably the jockey
             to follow"; "they hired unimpeachably first-rate
             faculty members" [syn: unquestionably]