Uberrimae Fidei

A contract in which knowledge of the material fact(s) lies with one party alone; that party is under a duty to make a full disclosure of these facts, and failure to do so makes the contract voidable. Read the full definition of Uberrimae Fidei on Duhaime.org

UIFSA

The American uniform child and spousal support legislation, the Uniform Interstate Family Support Act already adopted and implemented by most states. Read the full definition of UIFSA on Duhaime.org

Ultra Vires

Without authority. An act which is beyond the powers or authority of the person or organization which took it. Read the full definition of Ultra Vires on Duhaime.org

Umpire

Another word for an arbitrator or an arbitrator appointed to resolve an arbitration when the original arbitrators cannot agree. Read the full definition of Umpire on Duhaime.org

UNCITRAL

Acronym of the United Nations Commission on International Trade Law; also known in law as the abbreviation in reference to arbitration rules and laws published by that agency. Read the full definition of UNCITRAL on Duhaime.org

Under Protest

A qualification made to a legal action taken by a person that the action is contrary to the intent or desire of the person making the protest. Read the full definition of Under Protest on Duhaime.org

Undue Hardship

Special or specified circumstances that partially or fully exempt a person from performance of a legal obligation so as to avoid an unreasonable or disproportionate burden or obstacle. Read the full definition of Undue Hardship on Duhaime.org

Undue Influence

The unconscientious use by one person of his/her power over another in order to induce the other to compromise a property right. Read the full definition of Undue Influence on Duhaime.org

Unfair Dismissal

A dismissal of an employee in the absence of a substantial reason. Read the full definition of Unfair Dismissal on Duhaime.org

Unfavourable Witness

When a witness called by a party merely gives unfavorable answers to questions posed during examination in chief, that party may not cross examine the witness but may still lead evidence in contradiction Read the full definition of Unfavourable Witness on Duhaime.org

United States Code

Codified collection of federal legislation in the United States. Read the full definition of United States Code on Duhaime.org

Unjust Enrichment

Benefiting from the action or property of another without legal justification. Read the full definition of Unjust Enrichment on Duhaime.org

Unlawful Assembly

Three or more persons together holding the intent to commit a crime or to otherwise disturb the peace. Read the full definition of Unlawful Assembly on Duhaime.org

URESA

Uniform Reciprocal Enforcement of Support Act of the United States, as created in 1950 by the National Conference of Commissioners on Uniform State Laws. Read the full definition of URESA on Duhaime.org

Use

The old common law term for a trust. Read the full definition of Use on Duhaime.org

Usufruct

From ancient Roman law (and now a part of many civil law systems), usufruct means the rights to the product of another's property. Read the full definition of Usufruct on Duhaime.org

Usury

Excessive or illegal interest rate. Read the full definition of Usury on Duhaime.org