View Synonyms
[ UK /ʌnɐsˈe‍ɪləbə‍l/ ]
[ US /ˌənəˈseɪɫəbəɫ/ ]
  1. without flaws or loopholes
    an ironclad contract
    a bulletproof argument
    a watertight alibi
  2. immune to attack; incapable of being tampered with
    a secure telephone connection
    fortifications that made the frontier inviolable
    an impregnable fortress
  3. impossible to assail
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How To Use unassailable In A Sentence

  • This case for a belief module is far from unassailable, and indeed every one of these prongs is still vigorously disputed, but the whole picture is compelling.
  • Yet the potential role of friendly bacteria in promoting digestive health is becoming increasingly unassailable. Times, Sunday Times
  • England took an unassailable 2-1 lead in Melbourne last week. Times, Sunday Times
  • Oudin overcame Julie Coin 7-6 (7-3), 6-4 in just over two hours Sunday to give the Americans an unassailable 3-0 lead. Oudin wins to give USA spot in Fed Cup semifinals
  • When he turned back to Sinclair, his face was impassive, the Eton sang-froid unassailable. THE SCAR
  • As regards the ratio of the Shah Bano case, it was indeed unassailable.
  • But from a general view the status of the junior adventure story is unassailable.
  • We are in a cheap restaurant in a middle-of-nowhere town in Nevada that just happens to have one, unassailable attraction.
  • Were their science as unassailable as they insist it is, and were the consensus as broad as they say it is, and were they as brave as they claim to be, they would not be "goaded" into intellectual corruption. Postbulletin.com Local News
  • He had made it abundantly clear that he regarded his rights as unassailable.
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