Firm and Tuff

Firm adjective - Not showing weakness or uncertainty.

Tuff and firm are semantically related In some cases you can replace term "Tuff" with "Firm", this adjectives are similar.

Nearby Words: firming, firmness, firmly, firmed

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

Firm and tuff are semantically related in sturdy topic. Sometimes you can use "Firm" instead an adjective "Tuff", if it concerns topics such as obstinate.