Uncharacterized refers to something that is unknown, undefined, or unexplored. Some synonyms for uncharacterized include unfamiliar, uncharted, untested, unproven, unverified and unacknowledged. These words indicate that something has yet to be properly understood or identified. Uncharacterized can also mean indescribable or unique, in this sense, synonyms may include inexplicable, enigmatic, mysterious, or unprecedented. The use of synonyms help to convey the intended meaning or message more effectively. In scientific research, the term uncharacterized often refers to data that is yet to be analyzed or interpreted, and, therefore, synonyms can guide further research or analysis.