Irimi / Entering
入身
A fundamental Aikido movement principle of stepping directly into the attacker's space rather than evading.
Quick Facts
Definition
Irimi, in Aikido, means entering directly into the attacker's space – moving inward and off the line of the attack – instead of the defender simply dodging or retreating. Through this movement, the practitioner disrupts the attacker's balance and takes up an advantageous position beside or behind them, from where a throw or joint lock can be executed more easily. Irimi requires precise timing and the courage to step into an attack rather than away from it, making it one of the most psychologically demanding principles for beginners. Together with the principle of tenkan (turning), irimi forms the pair of basic movement strategies on which most Aikido techniques are built. Master Morihei Ueshiba emphasized that correctly executed irimi changes the situation from defensive to controlling before the attacker can complete their attack.
Related Terms
Art of fluid whole-body movement to step off the attacker's line of force.
Ukemi受身Art of breakfalling safely to absorb impact energy without injury during throws.
Tenkan / Turning転換A fundamental Aikido movement principle of turning the body 180 degrees, redirecting the force of an attack.