untenableadj.
英 ʌn'tenəb(ə)l | 美 ʌn'tɛnəbl
中文adj. （论据等）站不住脚的；不能维持的；不能租赁的；难以防守的
词根词源
untenable (adj.)1640s, "indefensible, incapable of being held against attack," from un- (1) "not" + tenable (adj.). Figurative sense is recorded from 1690s.
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