untenable

from WordNet (r) 3.0 (2006)
untenable
    adj 1: (of theories etc) incapable of being defended or
           justified [syn: {indefensible}, {untenable}]
    
from The Collaborative International Dictionary of English v.0.48
Untenable \Untenable\
   See {tenable}.
    
from Moby Thesaurus II by Grady Ward, 1.0
51 Moby Thesaurus words for "untenable":
      aidless, baseless, defenseless, empty, exceptionable, fatherless,
      faulty, flawed, friendless, groundless, guideless, helpless, idle,
      ill-founded, illogical, implausible, impossible, inadmissible,
      indefensible, inexpiable, insupportable, intolerable, leaderless,
      motherless, objectionable, pregnable, specious, unacceptable,
      unbased, undesirable, unforgivable, unfounded, unfriended,
      ungrounded, unjustifiable, unjustified, unpardonable, unprotected,
      unreasonable, unsound, unsuitable, unsupportable, unsupported,
      unsustainable, unsustained, unwarranted, vain, vulnerable, weak,
      without basis, without foundation

    

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