Unendorsed

Part of speech: adjective

Definitions

1. Not having been officially approved by any recognized authority or person of influence
2. Lacking formal support or endorsement from a credible source or relevant entity
3. Not having received formal approval from an authorized person or organization

Etymology: "Unendorsed" is a plain formation: the prefix "un-", meaning "not," attached to "endorsed," the past participle of "endorse." The prefix descends from a very old Germanic negating element that has been part of English since Old English, where "un-" was already used freely to reverse or negate adjectives and participles, so "unendorsed" needed no special invention; it simply applies that long-standing habit to a word already in use. The base word carries more history than its prefix. "Endorse" came into English from the sense of writing on the back of a document, since "endorse" literally combines "en-" (on) with the Latin-derived "dorsum" (back). A cheque endorsed by its payee bore a signature on its reverse side, and that physical act of signing the back of a paper gradually broadened into the general sense of giving public approval or support. "Unendorsed" thus describes something that lacks that backing, whether a product, a candidate, or a claim that no authority has vouched for.

Synonyms: unapproved, unverified, unauthorized, unsupported, rejected

Antonyms: endorsed, approved, verified, authorized, supported