Synonym word of unsubstantiated:

arguable, controversial, debatable, disputable, doubtful, dubious, dubitable, fishy, hard to believe, iffy, indefinite, open to doubt, open to question, suspect, suspicious, uncertain, unconfirmed, uncorroborated, unsupported


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Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular