unstable
Having a strong tendency to change.
Other meanings
Fluctuating; not constant.
“The political situation remains unstable.”
Readily decomposable.
Synonyms
- fluid
Word history
From Middle English "unstable".
Where this comes from
This definition is adapted from “unstable” on Wiktionary, by its contributors; related-word lists use Open English WordNet (CC BY 4.0, based on Princeton WordNet), published under CC BY-SA 4.0. This page is published under the same licence.