MeanOF

unsubstantiated

- adjective (adj)

Meaning: questionable, unproven

Synonyms: 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

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.