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unstable

un·sta·ble
U u

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [uhn-stey-buh l]
    • /ʌnˈsteɪ bəl/
    • /ʌnˈsteɪ.bl̩/
    • US Pronunciation
    • US IPA
    • [uhn-stey-buh l]
    • /ʌnˈsteɪ bəl/

Definitions of unstable word

  • adjective unstable not stable; not firm or firmly fixed; unsteady. 1
  • adjective unstable liable to fall or sway. 1
  • adjective unstable unsteadfast; inconstant; wavering: unstable convictions. 1
  • adjective unstable marked by emotional instability: an unstable person. 1
  • adjective unstable irregular in movement: an unstable heartbeat. 1
  • adjective unstable Chemistry. noting compounds that readily decompose or change into other compounds. 1

Information block about the term

Origin of unstable

First appearance:

before 1175
One of the 8% oldest English words
Middle English word dating back to 1175-1225; See origin at un-1, stable2

Historical Comparancy

Parts of speech for Unstable

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

unstable popularity

A common word. It’s meaning is known to most children of preschool age. About 95% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

unstable usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for unstable

adj unstable

  • airheaded — Slang. a scatterbrained, stupid, or simple-minded person; dolt.
  • anguished — Anguished means showing or feeling great mental suffering or physical pain.
  • anile — of or like a feeble old woman
  • around the bend — to force (an object, especially a long or thin one) from a straight form into a curved or angular one, or from a curved or angular form into some different form: to bend an iron rod into a hoop.
  • ashake — in a shaking manner

noun unstable

  • capriciousness — subject to, led by, or indicative of a sudden, odd notion or unpredictable change; erratic: He's such a capricious boss I never know how he'll react.
  • changeability — liable to change or to be changed; variable.
  • disequilibrium — lack of equilibrium; imbalance.
  • impermanence — not permanent or enduring; transitory.
  • mutability — liable or subject to change or alteration.

adjective unstable

  • aquake — Quaking.
  • changing — not remaining the same; transient
  • detonative — (of an explosive, or ordnance) That is liable to detonate spontaneously.
  • dingdong — Alternative spelling of ding-dong.
  • disoriented — confused as to time or place; out of touch: therapy for disoriented patients.

Antonyms for unstable

adj unstable

  • alive and kicking — If you say that someone or something is alive and kicking, you are emphasizing not only that they continue to survive, but also that they are very active.
  • all there — having his or her wits about him or her; of normal intelligence
  • at ease — If you are at ease, you are feeling confident and relaxed, and are able to talk to people without feeling nervous or anxious. If you put someone at their ease, you make them feel at ease.
  • bulldogged — one of an English breed of medium-sized, short-haired, muscular dogs with prominent, undershot jaws, usually having a white and tan or brindled coat, raised originally for bullbaiting.
  • close-fitting — Close-fitting clothes fit tightly and show the shape of your body.

adjective unstable

  • cincher — Something that cinches as in holds and fastens, such as a belt or corset.
  • deadlocked — If a dispute or series of negotiations is deadlocked, no agreement can be reached because neither side will give in at all. You can also say that the people involved are deadlocked.
  • equanimous — Calm and composed; of stable disposition.
  • established — (of a custom, belief, practice, or institution) Having been in existence for a long time and therefore recognized and generally accepted.
  • even — Flat and smooth.

Top questions with unstable

  • what makes an atom unstable?
  • an air parcel is considered unstable when it?
  • how does an unstable nucleus release energy?
  • what is unstable angina?
  • what does unstable mean?
  • when economic or political conditions are unstable?
  • what does emotionally unstable mean?
  • what does it mean to be emotionally unstable?
  • which will not cause air to become unstable?
  • what makes a nucleus unstable?
  • why is the middle east so unstable?
  • what does mentally unstable mean?
  • what is an unstable radioactive isotope?
  • radioactivity is produced when unstable nuclei?
  • what is unstable?

See also

Matching words

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