Synonyms of unsubstantiated
10 similar words
Another word for unsubstantiated is unfounded. Other synonyms of unsubstantiated are unproven, groundless, ungrounded, unsupported and unproved.
Synonyms and similar words for unsubstantiated
adjectiveLacking substantiation; without evidence.
- baseless
- idle
- footless US
- groundlessWithout any grounds to support it; baseless.
- unfoundedHaving no strong foundation; not based on solid reasons or facts.
- ungroundedNot grounded; without ground or basis, unreal, false.
- unjustified
- unprovedNot proved.
- unprovenNot proved.
- unsupportedWithout confirmation from a credible source, without verifying support.
Meaning of unsubstantiated
- adjective Lacking substantiation; without evidence.
Questions about synonyms of unsubstantiated
- What is another word for unsubstantiated?
- Unsubstantiated has 10 synonyms on Word.ws, such as unfounded, unproven, groundless, ungrounded, unsupported and unproved.
- What does unsubstantiated mean?
- Unsubstantiated means lacking substantiation; without evidence.
Source and license
Adapted from Wiktionary: unsubstantiated (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of unsubstantiated.” Word.ws, https://word.ws/synonyms/unsubstantiated. Based on Wiktionary, CC BY-SA 4.0.