untenable

adj

1. Not able to be held or sustained, such as of an opinion or position.

   “The theory of cold fusion was untenable.”

   “They are seeking to escape from the unpleasant implications of an untenable status dilemma. They desire but cannot afford a prestigious social status.”

   “The rumors about Anderson nevertheless placed Glasgow in an untenable social position, for close friends either suspected or knew of their engagement.”

   “The modern family would be an artificial and untenable social structure in this early period, just as the clan appears to be an artificial institution in our own society.”

   “Celebrating him [Robert E. Lee] in the time of George Floyd became, at last, untenable.”

2. Unfit for habitation.

   “[…] ceilings, staircases, all that make a house habitable had vanished in the flare of his conflagration, and since his soul could no longer dwell there, it dwelt instead, so to speak, in the pleasant garden which surrounded the untenable house.”

   “The floor was a veritable mud puddle, and even the meager bedding of old reindeer skins was wet from the dripping walls and ceiling. This untenable dwelling housed a family of six Eskimos: a grandmother, father and mother and three children.”

   “It is equally plausible to interpret the evidence to imply a life-span extending well into the fifth century, followed by a phase when the building became increasingly shabby and then untenable.”