Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

instability

noun

Synonyms and Antonyms of instability

the quality or state of not being firmly fixed in position

  • the instability of the bridge became tragically apparent when it suddenly collapsed
Synonyms of instability

insecurity, precariousness, shakiness, unstableness, unsteadiness
Words Related to instability

insubstantiality, unsoundness

changeability, inconstancy, mutability

laxness, looseness, slackness
Near Antonyms of instability

firmness, soundness, substantiality
Antonyms of instability

fastness, fixedness, security, stability, steadiness

Learn More about instability

  1. See words that rhyme with instability Dictionary: Definition of instability Medical Dictionary: Definition of instability Spanish Central: Translation of instability Nglish: Translation of instability for Spanish speakers Britannica English: Translation of instability for Arabic speakers

Seen and Heard

What made you want to look up instability? Please tell us where you read or heard it (including the quote, if possible).

show comments hide comments

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

panoply

a magnificent or impressive array

Get Word of the Day daily email!

TRENDING NOW

  1. Spartan Red Cross Warns of Shelter Conditions

  2. hirsute RIP Burt Reynolds

  3. op-ed NYT Publishes Anonymous Piece

  4. collegiality Kavanaugh Mentions Word in Hearing

  5. mistrial Manafort Guilty on 8 Counts

SEE ALL

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games