Accidental has several meanings in which the term cannot be appropriately rendered in English as “accidental.” This is the case when accidental is used in the sense of “provisional” or “temporary.” Thus, for example, the expression secretario accidental denotes an “acting (or) interim secretary.” Likewise, el decano accidental del Colegio de Abogados refers to an “acting (or) interim president of the Bar Association.”
Accidental may also mean sin formalidad jurídica (DLE). In that regard, in Spanish business law sociedad accidental is another expression for contrato de cuentas en participación, an informal business vehicle in which a party may privately contribute capital to a business venture with a view to sharing in the profits (arts. 239-243 of the Spanish Código de Comercio). As used in this context, sociedad accidental has often been translated as “partnership” or “joint venture,” although in Spain it lacks the usual legal formalities required to set up most businesses, being a simple pacto que no requiere escritura ni inscripción en el Registro Mercantil.