Tuff and Unstable

Tuff

Tuff noun - Hard volcanic rock composed of compacted volcanic ash.

Unstable is an antonym for tuff in topics: sturdy, obstinate, difficult.

Unstable

Unstable adjective - Not being in or able to maintain a state of balance.

Tuff is an antonym for unstable.

Nearby Word: unstably
Cite this Source
Unstable and Tuff. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/tuff/unstable
Tuff & Unstable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/tuff/unstable>.
Unstable or Tuff. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/tuff/unstable.
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