Ida: estocada in which the blade takes a pronounced downward direction without being perpendicular. Such an estocade although well placed may cause hemorrhage from the mouth through the blade going so nearly straight down that it touches the lungs.

Ida y Vuelta — allez et retour: round trip; a bull which turns by himself at the end of a charge and comes again on a straight line. Ideal for the bullfighter who can look after his aesthetic effects without having to bring the bull around at the end of the charge with cape or muleta.

Igualar: get the bull's front feet together.

Inquieto: nervous.

Izquierda: left; mano izquierda: the left hand, called zurda in bull ring dialect.