1. superlative form of firm: most solid, stable, or securely fixed
2. superlative form of firm: most resolute, determined, or unwavering
3. superlative form of firm: most strict or unyielding

Examples

• The oak tree has the firmest roots in the entire forest.
• She showed the firmest resolve during the crisis.
• This mattress provides the firmest support for your back.
• He took the firmest stance against the proposed changes.
• The concrete foundation is the firmest part of the building.
• Her firmest belief is that education should be accessible to all.
• The coach maintained the firmest discipline on the team.