IPA: /prɪˈkɛr.i.əs/
KK: /prɪˈkɛr.i.əs/
Something that is unstable or uncertain, often putting someone in a risky situation.
The climber found himself in a precarious position on the edge of the cliff.
Precarious → It is formed from "pre-" (meaning before) and "carus" (meaning dear or expensive). The word originally referred to something that is obtained by entreaty or request, thus implying a state of uncertainty or insecurity, as it is dependent on the favor of others.
Think of something that is 'dear' or 'valuable' ('carus') but is 'before' ('pre-') a stable condition, which helps you remember that 'precarious' means something that is uncertain or unstable.