unsupportable

/ˌʌnsəˈpɔːrtəbəl/
adjective
  1. Impossible to bear or endure; intolerable.
    • The heat in the attic was unsupportable during the summer.
    • Living under such constant pressure was unsupportable for her.
    • The pain from his injury became unsupportable, so he went to the hospital.
  2. Not able to be justified or defended with evidence or reason.
    • The lawyer argued that the accusation was unsupportable in court.
    • His claim that he had never made a mistake was unsupportable.
    • The scientist called the theory unsupportable because it lacked data.
Antonyms