Precarious
Part of speech: adjective
Definition: dangerously insecure or unstable; perilous depending on the intention of another
Example sentence: If we believe in the free market, then that leads to the big corporations taking power, that leads to this competition to lower wages, and that leads to precarious work.
Touch-and-go
Part of speech: adjective
Definition: precarious, delicate, dangerous, risky, sensitive or of uncertain outcome