Firm in Principle is a term used to describe a situation in which a person or organization has agreed to a certain course of action, but the details have yet to be finalized. It is often used in business and legal contexts, where a party may agree to a contract or other arrangement in principle, but the specifics are still being negotiated. The word 'STAUNCH' is often used to describe someone who is unwavering in their commitment to a cause or idea. In this context, it can be used to describe someone who is firm in principle and will not waver from their commitment.