firmer

adjective (comparative)
UK /ˈfɜːmə/
US /ˈfɜːrmər/

More hard and steady, not soft or shaky.

This mattress is firmer than the old one.


OTHER MEANINGS

2. More decided and not likely to change.

She took a firmer stand against the plan.

3. More tight and strong in grip or hold.

He gave my hand a firmer squeeze.

4. A person or tool that makes something firm or compact.

The gardener used a firmer to press the soil down.