"unstructured" in the adjective sense
1. unstructured
lacking definite structure or organization
"an unstructured situation with no one in authority"
"a neighborhood gang with a relatively unstructured system"
"children in an unstructured environment often feel insecure"
"unstructured inkblots"
2. amorphous, unstructured
lacking the system or structure characteristic of living bodies
Source: WordNet® (An amazing lexical database of English)
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