Meaning of “precarious” - Learner’s Dictionary

precarious

adjective uk us /prɪˈkeəriəs/
SITUATION

A precarious situation is likely to become worse:

Many illegal immigrants are in a precarious position.
NOT FIXED

not fixed and likely to fall:

That shelf looks a bit precarious.
precariously adverb

Her cup was balanced precariously on the arm of the chair.

(Definition of “precarious” from the Cambridge Learner’s Dictionary © Cambridge University Press)