The phrase 'precarious system' is correct and usable in written English.
You can use this phrase to describe a system that is uncertain, unstable, or insecure. For example, "Many people feel that the current economic system is a precarious system that is at risk of failing."
Our highly centralized food economy is a dangerously precarious system, vulnerable to accidental — and deliberate — contamination.
While each of the recent crashes in Europe had its own circumstances, these factors were shared, according to different countries' trade unions, which contend that the accidents reveal not so much the failings of any one driver than those of an increasingly precarious system.
The thought alone makes my blood boil, to know that the foundation of my education has come from a precarious system in which educators believe that one method of learning will work fine to suit every single individual in the United States.
Additionally, where an online generator fails or has been damaged, restart of vital loads such as fire pumps, emergency lighting, and machinery control systems may be difficult and may overload the already precarious power system [52].
Unlike countries with multi-party systems, proportional representation, and instant runoff voting, our simplistic, two-party, winner-take-all, precarious election system (with electoral college) encourages black-and-white, us against them thinking.
Mudslides have damaged the precarious road system.
Upon leaving (sometimes without passing the final exam), nearly 40% of these students find themselves in the precarious transitional system.
Compared with the several hundred people in the city who are able to commute by helicopter, about 3.7 million residents resort to the city's precarious bus system each day, according to municipal figures.
TAM's air-conditioned airport lounges, with live piano music and abundant food and drink for all passengers, provided a taste of sophistication for travelers in a developing country with a precarious transportation system.
Treasury officials expressed concern that a failure to seal a deal with Merrill — whose fate had been jeopardized during the height of the financial crisis — would further destabilize the precarious financial system.
Low- and middle-income 'post-conflict' (see Table 1 for definition) countries represent some of the most precarious health systems globally with poor capacity and significant governance challenges, and are frequently less accessible to the outside world.
