Word.ws English Dictionary

Synonyms of unstable

7 similar words · 1 opposite word

Another word for unstable is wobbly. Other synonyms of unstable are unsteady, tottering and labile. The opposite of unstable is stable.

Synonyms and similar words for unstable

adjectiveHaving a strong tendency to change.

  • labileApt or likely to change.

adjectiveFluctuating; not constant.

  • instable rareExhibiting instability; unstable.

adjectiveFickle.

adjectiveNot held or fixed securely and likely to fall over.

adjectiveMore synonyms

  • unsteadyNot held firmly in position; physically unstable.
  • wobblyUnsteady and tending to wobble.

Opposite of unstable

adjectiveMore antonyms

Meaning of unstable

  1. adjective Not stable.
  2. adjective Having a strong tendency to change.
  3. adjective Fluctuating; not constant.

Full definition of unstable

unstable in other languages

Questions about synonyms of unstable

What is another word for unstable?
Unstable has 7 synonyms on Word.ws, such as wobbly, unsteady, tottering and labile.
What is the opposite of unstable?
The opposite of unstable is stable.
What does unstable mean?
Unstable means not stable.

Source and license

Adapted from Wiktionary: unstable (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of unstable.” Word.ws, https://word.ws/synonyms/unstable. Based on Wiktionary, CC BY-SA 4.0.