irreconcilability

Irreconcilability refers to the quality of being incompatible or unable to be reconciled. It is used to describe fundamental conflicts between beliefs, values, interests, or statements that cannot be harmonized within a given framework.

The term derives from Latin irreconcilabilis, from in- "not" + conciliabilis "able to be reconciled."

In philosophy and logic, irreconcilable differences describe situations where two propositions or theories cannot be made consistent without altering essential assumptions. In ethics or political theory, irreconcilable value conflicts can produce persistent disagreements and deadlock.

In law, irreconcilable differences is a phrase used in some jurisdictions as a ground for no-fault divorce, signaling that the parties have fundamental incompatibilities that prevent continued marriage.

In organizations and diplomacy, irreconcilable differences may cause negotiation impasses. Proponents seek to resolve them through mediation, compromise, reframing issues, or, when necessary, formal separation.

Critics note that what seems irreconcilable can reflect incomplete information, power imbalances, or rigid frames; shifting perspectives or new evidence can transform an irreconcilable stance into a surmountable disagreement.

See also incompatibility, deadlock, no-fault divorce, moral philosophy.