"According to The Economist, the disparity between investor enthusiasm about AI and reality might be untenable [ʌnˈtɛnəbəl]. They report that only 5% of U.S. businesses say they use AI in their products and services..." — Will Ebiefung, The Motley Fool, 25 Nov. 2024

untenable
adj [ʌnˈtɛnəbəl]
Something, such as a position, excuse, or situation, that is described as untenable cannot be defended against attack or criticism.

難以防守的，不能防守的 ¶（論據等）站不住腳的 ¶ 不能租賃的

from the Old French verb tenir ("to hold, have possession of"), and ultimately from the Latin verb tenēre ("to hold, occupy, possess").

We tend to use untenable in situations where an idea or position is so off base that holding onto it is unjustified or inexcusable.

English