noun
cunning; craftiness; wiliness
Refers to shrewd, often underhanded cleverness. Can be used for both people and schemes.
彼の猾知には誰もかなわない。
No one can match his cunning.
その計画は猾知に満ちていた。
The plan was full of craftiness.
Composed of 猾 (crafty, sly) and 知 (knowledge, wisdom). The exact historical derivation is uncertain, but the combination conveys the idea of cleverness used for deceitful purposes.