What are synonyms for "unstructured"?

Synonyms for unstructured: chaotic, disorganized, formless, haphazard, random, unorganized.

unstructured

The company struggled to analyze the vast amount of unstructured data collected from social media.

The teacher encouraged the students to engage in unstructured play to foster their creativity.

His notes were completely unstructured, making it difficult for anyone else to follow his train of thought.