Definition
To annul is to cancel, void, or obliterate a legal act, instrument, judgment, or status so that it is treated as having no legal force. Annulment does not merely terminate something going forward — it may reach back to the origin of the thing annulled, treating it as though it never existed.
Two primary legal contexts:
1. Annulment of judgments or proceedings. A court judgment or judicial proceeding may be annulled when it is deprived of all force and operation — either ab initio (from the beginning, as though the judgment never issued) or prospectively (voiding future effect while leaving prior transactions undisturbed). The distinction matters: ab initio annulment raises questions about acts already taken in reliance on the voided judgment.
2. Annulment of marriage. A declaration by a court that a purported marriage was void or voidable from its inception. Unlike divorce, which ends a valid marriage, annulment declares that no valid marriage ever existed. Grounds vary by jurisdiction but typically include lack of capacity, fraud, duress, bigamy, or prohibited degrees of relation.
Annulment also applies, more broadly, to statutes, decrees, contracts, and other legal instruments made void by competent authority.
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Common Language
Modern common usage (Wiktionary): To formally revoke the validity of something; specifically, to dissolve a marital union on the grounds that it was not valid.
Historical common usage (Webster's 1913): To reduce to nothing; to obliterate; to make void or of no effect; to nullify or abolish — used of laws, decrees, decisions of courts, and other established rules made void by competent authority.
The common and legal meanings track closely, but the legal meaning adds a critical dimension the common usage obscures: annulment is not merely revocation going forward. In law, annulment typically operates retroactively, treating the annulled act or status as void from its inception. A researcher who imports the ordinary sense of "cancellation" into legal contexts may misread the scope of effect in historical sources.
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Common Confusion
ANNUL vs. RESCIND vs. VACATE: These terms are frequently treated as interchangeable in both common speech and some older legal sources, but they are distinct operations. To rescind a contract is to undo it, typically restoring parties to their prior positions — but rescission often presupposes a valid contract existed. To vacate a judgment is to set it aside so it is no longer in force, often without reaching the question of whether it was void from the start. Annulment, by contrast, most directly raises the ab initio question. Bouvier flags that annul is not a technical term of art and that equivalent words may express the same idea — this flexibility in historical sources makes precision in reading essential.
ANNULMENT vs. DIVORCE: In family law, these are entirely distinct legal actions with different grounds, procedures, and consequences. Divorce dissolves a valid marriage; annulment declares a marriage never validly existed. Historical sources sometimes blur this distinction, and some jurisdictions historically treated certain void marriages as requiring no formal proceeding at all.
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Why It Matters in Research
Retroactivity is the live question. When researching any annulled instrument, judgment, or marriage in historical sources, the first question is whether the annulment operated ab initio or only prospectively. Sources from the nineteenth century and earlier are inconsistent on this point, and courts sometimes used "annul," "vacate," and "void" interchangeably without specifying temporal reach. Read the surrounding procedural context, not just the operative word.
Marriage annulment sources require particular care. Pre-twentieth-century cases on marital annulment are often church-court or ecclesiastical in origin, especially in jurisdictions with English common law roots. The grounds recognized in equity courts, ecclesiastical courts, and early American courts do not map cleanly onto modern statutory grounds. Researchers working in family law history should not assume continuity of doctrine simply because the term "annulment" persists across centuries.
Bouvier's observation that annul is not a technical word has practical consequence: in historical pleadings and instruments, the drafter's intent — and the specific legal effect sought — must often be inferred from context rather than from the word itself. Anderson's cross-references (NULL, REPEAL, RESCISSION, VACATE) are a useful navigational cluster for understanding what neighboring doctrines the source author may have had in mind.
Legislative annulment of statutes or prior enactments appears in historical sources as a distinct usage. When a legislature "annuls" a prior act, the question of whether rights vested under the prior act survive is a recurring interpretive problem — one that courts in the nineteenth century addressed inconsistently.
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Historical Dictionary Support
Black's (1st and 2nd Ed.) offer the same core definition: to cancel, make void, destroy; to deprive a judgment or proceeding of all force and operation, either ab initio or prospectively. The ab initio/prospective distinction, explicit in Black's, is the most practically useful formulation and is absent from more general treatments.
Bouvier adds two useful points: first, that annul is not a technical term, meaning equivalent language in historical documents carries equal legal weight; second, a nineteenth-century citation suggesting annul may mean merely a refusal to perform further — falling short of rescission or avoidance. This softer usage appears in contract contexts and is a genuine interpretive trap: a court saying it "annuls" a contract may mean something less sweeping than a modern reader expects.
Anderson's entry is minimal — a cross-reference cluster — but the terms flagged (NULL, REPEAL, RESCISSION, VACATE) confirm that historical legal writers understood annulment as one among several cognate voiding operations, not a uniquely defined term.
Webster's 1913 confirms the common and legal meanings were understood in alignment, while emphasizing the applicability to laws, decrees, and court decisions made void by competent authority — a useful reminder that annulment is an act requiring legal authority, not merely a party's assertion.
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Jurisdictional Note
Marriage annulment grounds and procedures vary significantly by state. Some jurisdictions distinguish void marriages (automatically without legal effect, requiring no decree) from voidable marriages (requiring a court decree to annul). Federal law does not govern marital annulment; researchers must consult applicable state statute and case law. Ecclesiastical annulments (granted by religious bodies) have no civil legal effect in the United States.
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Encyclopedia Cross-Reference
Marriage — Annulment (Grounds and Procedure) (The Law Mind Family Law Encyclopedia)
Marriage — Fraud, Duress, and Incapacity as Grounds for Annulment (The Law Mind Family Law Encyclopedia)
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