| Main Entry: | baseless |
| Part of Speech: | adjective |
| Definition: | without substantiation |
Synonyms: |
bottomless, flimsy, foundationless, gratuitous, groundless, reasonless, unconfirmed, uncorroborated, unfounded, ungrounded, unjustifiable, unjustified, unsubstantiated, unsupported, untenable, unwarranted |
Antonyms: |
based |
| Main Entry: | unsubstantiated |
| Part of Speech: | adjective |
| Definition: | 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 |
| Main Entry: | unofficial |
| Part of Speech: | adjective |
| Definition: | unauthorized |
Synonyms: |
informal, off the record, personal, private, unconfirmed, uncorroborated, unsanctioned |
Antonyms: |
authoritative, authorized, confirmed, official |