Added 9 October 2026 unstructured adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about unstructured at Wordnik → Where our words come from → Lacking definite structure or organization. an unstructured situation with no one in authority Lacking the system or structure characteristic of living bodies. Related Words: amorphousunregulatedambiguousinorganicunorganizedunofficialinformalfreeunplannedunorganisedformalstructured Back to today's word