Disorder

Disorder is a term often associated with disease and abnormal behavior that destroys the repetitive patterns or ordering structure of a system. This word is sometimes associated with randomness.

Some example of Disorder related to Entropy

In this video, Jim Al-Khalili stated that:

Entropy is the measure of the disorder of a system.

— Jim Al-Khalili, How Einstein changed time forever, on Big Think

As stated earlier, this is a common semantic mistake made by science teachers.