Enter a clue or pattern or both:
The Clue
Worse than precarious (9 letter answer)
The Answer
UNTENABLE
Tags
Notes
The answer UNTENABLE is so rare that it appears less than once every 2500 puzzles.
Definition
UNTENABLE as an adjective:
1. (indefensible, untenable) = (of theories etc) incapable of being defended or justified