| groundless(adjective, characteristic, precariousness, unfoundedness) |
| unsupported(adjective, characteristic, precariousness, unfoundedness) |
| reasonless(adjective, characteristic, precariousness, unfoundedness) |
| unjustifiable(adjective, characteristic, precariousness, unfoundedness) |
| unjustified(adjective, characteristic, precariousness, unfoundedness) |
| unsubstantiated(adjective, characteristic, precariousness, unfoundedness) |
| baseless(adjective, characteristic, precariousness, unfoundedness) |
| unfounded(adjective, characteristic, precariousness, unfoundedness) |
| ungrounded(adjective, characteristic, precariousness, unfoundedness) |
| unconfirmed(adjective, characteristic, precariousness, unfoundedness) |
| bottomless(adjective, characteristic, precariousness, unfoundedness) |
| flimsy(adjective, characteristic, precariousness, unfoundedness) |
| foundationless(adjective, characteristic, precariousness, unfoundedness) |
| gratuitous(adjective, characteristic, precariousness, unfoundedness) |
| uncorroborated(adjective, characteristic, precariousness, unfoundedness) |
| untenable(adjective, characteristic, precariousness, unfoundedness) |
| unwarranted(adjective, characteristic, precariousness, unfoundedness) |
| without substantiation(expression, characteristic, precariousness, unfoundedness) |
| fictitious(adjective, fiction, art, creation, imagination) |
| cooked-up(adjective, imagination, invention, fiction) |