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unstable
[ uhn-stey-buhl ]
adjective
- not stable; not firm or firmly fixed; unsteady.
- liable to fall or sway.
Synonyms:
- unsteadfast; inconstant; wavering:
unstable convictions.
Synonyms:
- marked by emotional instability:
an unstable person.
- irregular in movement:
an unstable heartbeat.
- Chemistry. noting compounds that readily decompose or change into other compounds.
unstable
/ ʌˈٱɪə /
adjective
- lacking stability, fixity, or firmness
- disposed to temperamental, emotional, or psychological variability
- (of a chemical compound) readily decomposing
- physics
- (of an elementary particle) having a very short lifetime
- spontaneously decomposing by nuclear decay; radioactive
an unstable nuclide
- electronics (of an electrical circuit, mechanical body, etc) having a tendency to self-oscillation
unstable
- Liable to undergo spontaneous decay into some other form. For example, the nucleus of uranium 238 atom is unstable and changes by radioactive decay into the nucleus of thorium 234, a lighter element. Many subatomic particles, such as muons and neutrons, are unstable and decay quickly into other particles.
- See more at decay
- Relating to a chemical compound that readily decomposes or changes into other compounds or into elements.
- Relating to an atom or chemical element that is likely to share electrons; reactive.
- Characterized by uncertain or inadequate response to treatment and the potential for unfavorable outcome, as the status of a medical condition or disease.
Derived Forms
- ܲˈٲ, adverb
- ܲˈٲԱ, noun
Other Word Forms
- ܲ·ٲb·Ա noun
- ܲ·ٲb adverb
Word History and Origins
Synonym Study
Example Sentences
A year after that, I would end up in inpatient trauma therapy while Nick apparently told people that I was a drug addict and mentally unstable.
The debt, which was not paid off until 1947, contributed to Haiti becoming one of the poorest and most unstable countries in the Americas.
"We agreed that in an unstable world we must play our part as responsible nations with global interests," Sir Tony wrote on X, "and we reflected on the importance of military-to-military communications".
However, its job market has long been unstable and the city is ranked among the neediest in the US.
The company became a publicly traded company in 2021, after delaying its original IPO in 2019 due to unstable market conditions.
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