What does disannul mean?
Disannul is a formal verb meaning to declare something officially invalid — to annul it, in other words. It applies most often to laws, decrees, marriages, contracts, and other binding arrangements whose force can be legally undone. The prefix "dis-" intensifies the base verb "annul", giving the word a deliberate, emphatic quality that suits solemn legal or legislative language. Because it is rare and rather old-fashioned, "disannul" appears mainly in statutes, court records, historical documents, and literary prose; in ordinary speech, speakers overwhelmingly prefer "annul", "cancel", "revoke", or "rescind". Its connotations are weighty and institutional, evoking the machinery of courts and parliaments rather than casual decision-making. For readers of older legal texts, however, the word remains worth knowing: encountering "disannulled" signals that some previously binding act has been struck down and rendered void as though it had never carried force.
verbTo declare something, especially a law, marriage, or formal agreement, officially invalid or void; to cancel or annul.
- To declare formally that something (a law, decree, marriage, or agreement) is no longer valid; to annul.
"The council moved to disannul the ordinance that had been passed in error."
"Parliament voted to disannul the controversial statute before it could take effect."
"The court's ruling served to disannul the settlement reached by the previous administration."
Sometimes one negative prefix just isn't enough: "disannul" doubles down on "annul" for extra legal emphasis, even though both trace back to the same Latin root meaning "nothing."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of disannul
"Disannul" was formed in English from the verb "annul" plus the prefix "dis-", which here serves an intensive or reinforcing function. "Annul" itself derives from the Late Latin "annullare", built on Latin "ad-" (toward) and "nullus" (none), so at its root the word means to reduce something to nothing. The same Latin root gives English "nullify" and "nullity", making these close cognates. "Disannul" emerged during the early modern period and survives today only in formal legal and literary usage.
Related word forms
How disannul is actually used
"Disannul" is formal and somewhat archaic, appearing chiefly in legal, parliamentary, and literary contexts. In everyday English, "annul", "revoke", or "cancel" are the usual choices; "disannul" carries an emphatic, old-fashioned tone.
Easily confused with disannul
"Annul" is the standard modern word for declaring something void, while "disannul" is a rarer, more emphatic synonym formed by adding the prefix "dis-", now largely confined to legal and literary registers.