How to Say "unstable" in Spanish
The Spanish word for “unstable” is “inestable” — B1 level. This is a very common word in everyday Spanish.

Examples
Esta mesa es un poco inestable.
This table is a bit shaky.
El clima está muy inestable hoy; podría llover en cualquier momento.
The weather is very unstable today; it could rain at any moment.
La situación política en la región sigue siendo inestable.
The political situation in the region remains unstable.
One Form for Everyone
This word ends in -e, which means it stays the same whether you are describing a masculine noun (el clima) or a feminine noun (la mesa).
Ser vs. Estar
Use 'ser' if something is naturally unstable (like a bad personality trait) and 'estar' if it's currently unstable (like the weather or a wobbly chair).
Don't use 'inestabla'
Mistake: “La silla está inestabla.”
Correction: La silla está inestable. Adjectives ending in -e don't change to -a for feminine things.
Other Meanings of “inestable”
“inestable” can also mean:
- emotional or mental state(B2)
Related Translations
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