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English definition of “untenable”

untenable

adjective uk   /ʌnˈten.ə.bl̩/ formal us  
describes a theory or argument that cannot be supported or defended against criticismWrong describes a situation that cannot continue as it is: If three people in four no longer support the government, isn't this an untenable situation?Impossible and improbable
(Definition of untenable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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