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Synonyms

precarious

American  
[pri-kair-ee-uhs] / prɪˈkɛər i əs /

adjective

  1. dependent on circumstances beyond one's control; uncertain; insecure.

    a precarious livelihood.

    Synonyms:
    indeterminate, unsure
    Antonyms:
    secure
  2. dependent on the will or pleasure of another; liable to be withdrawn or lost at the will of another.

    He held a precarious tenure under an arbitrary administration.

    Synonyms:
    undependable, unreliable, dubious, doubtful
    Antonyms:
    reliable
  3. exposed to or involving danger; dangerous; perilous; risky.

    the precarious life of an underseas diver.

    Synonyms:
    hazardous
    Antonyms:
    safe
  4. having insufficient, little, or no foundation.

    a precarious assumption.

    Synonyms:
    unfounded, baseless, groundless
    Antonyms:
    well-founded

precarious British  
/ prɪˈkɛərɪəs /

adjective

  1. liable to failure or catastrophe; insecure; perilous

  2. archaic dependent on another's will

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See uncertain.

Other Word Forms

Etymology

Origin of precarious

First recorded in 1640–50; from Latin precārius “obtained by entreaty; given as a favor; borrowed; uncertain”; see also prayer 1

Explanation

Grab for the adjective precarious when something is unstable, dangerous or difficult and likely to get worse. Are you totally broke and the people you owe money to keep calling? You're in a precarious financial situation! The Latin root of precarious means "obtained by asking or praying." This fits well as precarious always signals that help is needed desperately. If your life is precarious or you are in a precarious situation, things could become difficult, maybe even dangerous, for you. If your footing or hold on something is precarious, it is unstable or not firmly placed, so that you are likely to slip or lose your grip.

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Vocabulary lists containing precarious

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Pereira's worst affected neighborhoods were also its most impoverished, with homeless people, Venezuelan migrants and street vendors in precarious situations bearing the brunt of the impact.

From Barron's Aug. 14, 2026

Borrow a few inches from the precarious ledge beside the table.

From Salon Aug. 11, 2026

Bader, who is in the first year of of a two-year, $20.5 million contract, finds himself in a far more precarious position than Kent.

From Los Angeles Times Jul. 31, 2026

Or the UK may opt to keep its precarious geopolitical position by sticking to its existing deals in medicines, metals and cars.

From BBC Jul. 24, 2026

The water also ate away some of the soil from around the pillars holding up our house, making it even more precarious.

From "The Glass Castle" by Jeannette Walls

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