Circunstancial

Circunstancial is an adjective used in Spanish and Portuguese grammars to designate a type of adverbial element called complemento circunstancial (CC). A CC expresses the circumstances surrounding the action or state described by the verb, rather than its core argument. In this sense, CCs are optional in many sentences and are typically formed by adverbials or prepositional phrases.

CCs can specify various aspects of the action, most commonly time, place, mode, and cause, but they may also express purpose, condition, concession, instrument, or accompaniment. They answer questions such as when did it happen, where, how, why, or for what purpose. Because they modify the verb, CCs are highly movable within the sentence and often placed at the end, though they can appear at the beginning or in other positions without changing the basic meaning.

Examples: Spanish: “Llegué temprano” (temporal CC: temprano). “Salió de la ciudad por la noche” (lugar y tiempo). “Lo hizo con habilidad” (modo). Portuguese: “Ele saiu cedo” (temporal). “Ela abriu a porta com cuidado” (modo). “Viajamos para Lisboa” (lugar). Note: beyond linguistics, the term ocasionally appears in other senses, such as referring to circumstances in general language or to circumstantial evidence in legal contexts, where it denotes proof based on surrounding facts rather than direct testimony.