displacement,arbitrariness,

Nobody made him do it; his decision was arbitrary.

Barb, garb, arbitrariness.

No, motivation does not necessarily contradict the theory of arbitrariness and conventionality. Motivation is the drive or reason behind our actions, while the theory of arbitrariness and conventionality suggests that certain aspects of language or behavior are arbitrary or based on convention rather than inherent meaning. These concepts can coexist and influence each other in various ways.

Al-Samad