esporádico
= occasional, sporadic, one-time, odd, fitful.
Ex: BLAISE conduct the occasional search for those libraries which do not have access to a terminal.
Ex: This article describes how a sporadic outbreak of mould in this section of the collection was treated with a special cleaning machine.
Ex: Appropriate system planning to eliminate "holes," segregation of public and administrative networks, programming security "firewalls," and assignment of one-time passwords all help in networked computing security.
Ex: For example, review articles are expected to be supported by extensive bibliographies, whilst it is unusual for a letter to carry more than the odd citation.
Ex: This is a compelling account of Twain's fitful creative life.