Tending to promote or bring about agreement, harmony, or reconciliation.
From concordat (an agreement between parties) or concordare (to agree) + -ory (tending to), creating an adjective describing something that works toward harmony.
Diplomats might describe their approach as 'concordatory' when they're actively trying to bring disagreeing parties together, making it a word with hopeful, bridge-building connotations.
Complete word intelligence in one call. Free tier — 50 lookups/day.