irimi

Irimi is a term used in several Japanese martial arts to describe an entering movement, where the defender steps forward to move onto the attacker’s line of attack. The core idea is to close distance in a controlled, direct path, often in order to apply a technique or control the opponent’s balance. Irimi is typically contrasted with tenkan, the turning or sidestepping response, and with other body-management concepts such as tai sabaki.

In Aikido, irimi is a foundational concept. Practitioners execute a straight-line entry toward the attacker, aiming to blend with the attack and disrupt the opponent’s balance (kuzushi). The entering movement is frequently followed by a technique or throw, with irimi-nage (entering throw) being a well-known example, where the defender steps in, perhaps pivots, and projects the attacker.

In other arts, such as karate, irimi likewise describes forward entering movements or techniques delivered by stepping into the target, such as irimi-zuki (entering punch). While the applications differ, the common thread is a deliberate forward penetration that engages the attacker rather than retreating or evading.

Training emphasis for irimi includes a solid stance, coordinated breathing, and precise timing to avoid over-commitment. Safe practice requires awareness, appropriate partner through ukemi or breakfalls where applicable, and progression from basic entries to the corresponding technique.

The etymology is Japanese: iri means “enter,” with irimi denoting the act of entering into the attack.