allowedforbidden

Allowedforbidden is a neologism formed by combining the concepts of permitted (allowed) and prohibited (forbidden). It is not a standard term with a single, formal definition, but is used in discussions about rules, policies, and logical systems to emphasize the relationship and boundary between what is allowed and what is forbidden.

In normative and logical contexts, the idea highlights two complementary categories within a rule set. Deontic logic, which studies concepts such as permission and prohibition, distinguishes between actions that are permitted and those that are forbidden; the phrase allowedforbidden can be used informally to discuss systems that must clearly separate these categories to avoid ambiguity or conflict.

In computer science and data governance, policy engines and access-control mechanisms often rely on an allowed list (whitelist) and a forbidden list (blocklist). These mechanisms govern what actions, users, or data are permissible and which are blocked, and they must be designed to resolve overlaps or exceptions consistently to maintain security and compliance.

In ethics, law, and policy design, delineating what is allowed versus forbidden defines duties, rights, and social norms. Ambiguities or edge cases—such as exceptions, indirect effects, or conflicting rules—can challenge the practical application of the allowed/forbidden distinction.

Etymology: allowedforbidden is a portmanteau of the two opposite statuses, used in informal discourse to discuss the balance and boundaries between permissible and prohibited actions.

See also: deontic logic, permissibility, prohibition, policy design, access control.