UIFSA - Uniform Interstate Family Support Act that replaces URESA and is a Model Act that all states were required to adopt verbatim. It is used to enforce and manage interstate child support cases.

Unconditional Positive Regard - Complete love and acceptance of an individual by another person, such as a parent for a child, with no conditions attached.

Unconditioned Response - In classical conditioning, the response elicited by an unconditioned stimulus without prior training or learning.

Unconditioned Stimulus - In classical conditioning, the stimulus that elicits an unconditioned response.

Unconscionability - An absence of meaningful choice on the part of one of the parties to a contract, and contract terms which are unreasonably favorable to the other party.

Unconscious - That part of the mind or mental functioning of which the content is only rarely subject to awareness. It is a repository for data that have never been conscious (primary repression) or that may have been conscious and are later repressed (secondary repression).

Unconscious Inference - Helmholtz's term for perception that occurs outside of conscious awareness.

Undersecured Claim - A debt secured by property that is worth less than the amount of the debt.

Undoing - A mental mechanism consisting of behavior that symbolically atones for, makes amends for, or reverses previous thoughts, feelings, or actions.

Undue Hardship - The most widely used test for evaluating undue hardship in the dischargeability of a student loan includes three conditions: (1) the debtor cannot maintain – based on current income and expenses – a minimal standard of living if forced to repay the loans; (2) there are indications that the state of affairs is likely to persist for a significant portion of the repayment period; and (3) the debtor made good faith efforts to repay the loans.

Undue Influence - Whatever destroys free will and causes a person to do something he would not do if left to himself.

Unfair Labor Practice - Actions by the employer which interfere with, restrain, coerce, or threaten employees with respect to their rights.

Uniform Commercial Code - A uniform law governing commercial transactions. The U.C.C. has been adopted by all states except Louisiana.

Uniform Laws - Annotated Annotated uniform and model acts approved by the National Conference of Commissioners on Uniform State Laws.

Unilateral Contract - An agreement by which one undertakes an express performance without receiving any express promise of performance from the other.

Union - An organization of workers formed for the purpose of collective bargaining.

United States Attorney - A lawyer appointed by the President in each judicial district to prosecute and defend cases for the federal government. The U.S. Attorney employs a staff of Assistant U.S. Attorneys who appear as the government's attorneys in individual cases.

United States Bankruptcy Court - The judicial body which hears matters pertaining to bankruptcy and reorganization.

United States Court of Appeals - Courts which hear appeals from federal district courts, bankruptcy courts, and tax courts.

United States Court of Appeals for the Armed Forces - Court which hears appeals from court marshal decisions .

United States Court of Claims - Court which hears actions against the U.S. Government.

United States Court of Customs & Patent Appeals - Court which hears appeals from all U.S. customs courts.

United States Court of International Trade - Court which hears cases concerning federal tariff laws.

United States District Courts - Courts which try both criminal and civil actions and admiralty cases.

United States Magistrate Judge - Courts given authority by 28 U.S.C. s 636. This court hears all preliminary criminal matters, but does not conduct felony trials, and any pretrial civil matters referred by the district court. If all parties consent, criminal misdemeanor and civil trials can be heard by this court.

United States Marshal's Service - Agency which serves civil and criminal process in federal courts.

United States Reports - Publication of court decisions of the United States Supreme Court.

United States Supreme Court - The highest court in the land, established by U.S. Constitution.

United States Trustee - An officer of the U.S. Department of Justice responsible for supervising the administration of bankruptcy cases, estates, and trustees; monitoring plans and disclosure statements; monitoring creditors' committees; monitoring fee applications; and performing other statutory duties.

Unjust Enrichment - The principle that one person should not be permitted to unjustly enrich himself at the expense of another, but should be required to make restitution for the property or benefit received.

Unlawful Detainer - A detention of real estate without the consent of the owner or other person entitled to its possession.

Unlawful Detainer Action - A lawsuit brought by a landlord against a tenant to evict the tenant from rental property – usually for nonpayment of rent.

Unliquidated Claim - A claim for which a specific value has not been determined.

Unliquidated Debt - Remaining not determined; unassessed or unsettled; in dispute as to the proper amount.

Unruly Child - A child who: (1) violates a law, (2) does not submit to the reasonable control of the child's parents, teachers, guardian, or custodian, by reason of being wayward or habitually disobedient.

Unscheduled Debt - A debt that should have been listed by the debtor in the schedules filed with the court but was not.

Unsecured Claim - A claim or debt for which a creditor holds no special assurance of payment, such as a mortgage or lien; a debt for which credit was extended based solely upon the creditor's assessment of the debtor's future ability to pay.

Unsecured Debts - In bankruptcy, debts such as open accounts at department stores for which the debtor has not pledged collateral to guarantee payment.

Uphold - The appellate court agrees with the lower court decision and allows it to stand.

URESA - Uniform Reciprocal Enforcement of Support Act, replaced by UIFSA.

Urophilia - One of the paraphilias, characterized by marked distress over, or acting on, sexual urges that involve urine.

Usury - Extraction of interest on a loan above the maximum rate permitted by statute.