groundless

[ground-lis] / ˈgraʊnd lɪs /

ADJECTIVE

without reason, justification

Synonyms

STRONGEST

baseless false flimsy gratuitous illogical illusory unfounded unjustified unsupported unwarranted

WEAK

bottomless causeless chimerical empty foundationless idle imaginary unauthorized uncalled-for unprovoked

Antonyms

STRONGEST

correct genuine justified real reasonable right substantiated warranted

WEAK

called-for grounded proven

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The journalist said in a witness statement that her professional reputation had been impacted by "groundless" allegations made against her.

From BBC • Mar. 9, 2026

“The impact on the bookings has been quite hard,” said Patel, who called the lawsuit groundless.

From The Wall Street Journal • Nov. 20, 2025

Beijing at the time called the accusations "groundless".

From Barron's • Oct. 19, 2025

Lot of reasons for that, it’s not groundless optimism.

From Salon • Aug. 5, 2025

My fears were groundless, there was nothing to it.

From "Invisible Man" by Ralph Ellison

Vocabulary lists containing groundless

"Oedipus the King" by Sophocles

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