Technique reversal. (UKE becomes NAGE and vice- versa). This is usually a very advanced form of practice. KAESHI WAZA practice helps to instill a sensitivity to shifts in resistance or direction in the movements of one's partner. Training so as to anticipate and prevent the application of KAESHI WAZA against one's own techniques greatly sharpens aikido skills.
The literal translation of //kaeshi// is "to return; reverse". Kaeshi waza is an attempt by uke to counter a technique and respond with another technique.
Kaeshi waza is generally a more advanced practice because it requires more sensitivity between nage and uke. Methods of practice vary from dojo to dojo. At one extreme, nage may be advised to allow uke to successfully counter the technique every time. At the other, nage and uke may work back and forth continually without any preset outcome until one of them is able to perform a technique.
When practicing kaeshi waza forms, uke should wait until the technique is being applied before beginning any reversal. Ideally, the reversal arises from an actual weakness in nage's technique.