Uberrimae Fidei: Latin: of the utmost good faith. | Legal Definition of Uberrimae Fidei

Ubi Jus Ibi Remedium: Latin: For every wrong, the law provides a remedy. | Legal Definition of Ubi Jus Ibi Remedium

UIFSA: The American uniform child and spousal support legislation, the Uniform Interstate Family Support Act already adopted and implemented by most states. | Legal Definition of UIFSA

Ultra Petita: Latin: beyond that which is sought. | Legal Definition of Ultra Petita

Ultra Vires: Latin: without authority. | Legal Definition of Ultra Vires

Ultrahazardous Activity: Activities that can cause injury to others, even when conducted with the greatest prudence and care. | Legal Definition of Ultrahazardous Activity

Umpire: Another word for an arbitrator or an arbitrator appointed to resolve an arbitration when the original arbitrators cannot agree. | Legal Definition of Umpire

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. | Legal Definition of UNCITRAL

Unconscionable: A bargain or contract which is clearly unfair, exorbitant, harsh, contrary to common sense or good conscience. | Legal Definition of Unconscionable

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. | Legal Definition of Under Protest

Underground Stream: Waters that flow underground within a reasonably water that passes through or under the surface in an ascertainable channel. | Legal Definition of Underground Stream

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. | Legal Definition of Undue Hardship

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. | Legal Definition of Undue Influence

Unfair Dismissal: A dismissal of an employee in the absence of a substantial reason. | Legal Definition of Unfair Dismissal

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. | Legal Definition of Unfavourable Witness

Union: A defined group of employees formed for the purposes of representing those employees with the employer as to the terms of a collective contract of employment. | Legal Definition of Union

United Kingdom: England and Wales with Scotland (forming Great Britain), and Northern Ireland. | Legal Definition of United Kingdom

United States Code: Codified collection of federal legislation in the United States. | Legal Definition of United States Code

Unitrust: A trust which in the distribution of benefits from time to time to the beneficiary, pools capital and income, and does not otherwise distinguish between the capital of the trust and the income of the trust for the purposes of establishing interim payments to a beneficiary. | Legal Definition of Unitrust

Unjust Enrichment: Benefiting from the action or property of another without legal justification. | Legal Definition of Unjust Enrichment

Unlawful Assembly: Three or more persons together holding the intent to commit a crime or to otherwise disturb the peace. | Legal Definition of Unlawful Assembly

Unnatural Will: A will which differs from what might of been otherwise expected of a testator such as a large gift to a stranger, or the exclusion of his children from his estate. | Legal Definition of Unnatural Will

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. | Legal Definition of URESA

Urology: Specialty in medicine that deals with the male and female urinary tracts and the male genitalia. | Legal Definition of Urology

Use: Latin: trust. | Legal Definition of Use

Usufruct: The rights to the product of another's property. | Legal Definition of Usufruct

Usury: Excessive or illegal interest rate. | Legal Definition of Usury

Uterine: Related to the uterus or, in estate law, siblings issue of a common mother. | Legal Definition of Uterine

Uzi Machine Gun: A sub-machine gun using a blowback mechanism with a bolt that wraps around the end of the barrel, and empty cases ejected through slots in the body. | Legal Definition of Uzi Machine Gun