Word.ws English Dictionary

Synonyms of groundless

10 similar words

Another word for groundless is unfounded. Other synonyms of groundless are baseless, unproven, unsubstantiated, ungrounded and unsupported.

Synonyms and similar words for groundless

adjectiveWithout any grounds to support it; baseless.

  • baselessOf reasoning: based on something that is not true, or not based on solid reasons or facts; unfounded; without a basis.
  • unfoundedHaving no strong foundation; not based on solid reasons or facts.
  • unsupportedWithout confirmation from a credible source, without verifying support.
  • idle
  • footless US
  • ungroundedNot grounded; without ground or basis, unreal, false.
  • unjustified
  • unprovedNot proved.
  • unprovenNot proved.
  • unsubstantiatedLacking substantiation; without evidence.

Meaning of groundless

  1. adjective Without any grounds to support it; baseless.
  2. adjective Bottomless; having no bottom or floor.

Full definition of groundless

groundless in other languages

Questions about synonyms of groundless

What is another word for groundless?
Groundless has 10 synonyms on Word.ws, such as unfounded, baseless, unproven, unsubstantiated, ungrounded, unsupported and unproved.
What does groundless mean?
Groundless means without any grounds to support it; baseless.

Source and license

Adapted from Wiktionary: groundless (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 groundless.” Word.ws, https://word.ws/synonyms/groundless. Based on Wiktionary, CC BY-SA 4.0.