1. the quality or state of being favorable; approval, support, or positive regard
Usage: British spelling; American equivalent is 'favorableness'
2. the quality of being advantageous or beneficial; suitability of conditions or circumstances
Usage: British spelling; American equivalent is 'favorableness'

Examples

• The favourableness of the committee's response encouraged the team to proceed with their proposal.
• The weather's favourableness made it an ideal day for the outdoor event.
• She appreciated the favourableness of the terms offered in the contract.
• The favourableness of market conditions led to increased investment.
• Despite the initial favourableness of the plan, unforeseen obstacles emerged.
• The judge's favourableness toward the defendant was evident in the ruling.