untenable

/ʌnˈtɛnəbəl/
adjective
  1. Not able to be defended or justified; impossible to maintain or support.
    • Living in a house with no heat or water is an untenable situation.
    • The politician's position on the issue was morally untenable.
    • The scientist's theory became untenable after new evidence was discovered.
What does "untenable" mean? | whatsthatwordmean | whatsthatwordmean