The quality or state of being conciliatory; the tendency to promote peace and agreement.
Conciliatory + -ness, a suffix that nominates qualities and abstract states. This builds a noun describing an inherent peacemaking characteristic or personality trait.
When you call someone 'known for their conciliatoriness,' you're saying their entire personality tends toward bridge-building—it's a character trait, not just a behavior. It's the kind of compliment used in legal and diplomatic circles.
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