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.

A Kremlin spokesman rejected the allegations as groundless.

From The Wall Street Journal • Dec. 12, 2025

The long-term rise in beef prices has provoked market participants into a spate of finger-pointing, not all of which is groundless.

From Los Angeles Times • Nov. 19, 2025

Beijing at the time called the accusations "groundless".

From Barron's • Oct. 19, 2025

In response, the corporation said Sir Ed's "continuing attacks on BBC journalism are completely groundless".

From BBC • Sep. 23, 2025

As it turns out, the theory is groundless; on the next Saturday, Pete even brings me a homemade Egg McMuffin as a treat.

From "Nickel and Dimed: On (Not) Getting By in America" by Barbara Ehrenreich

Vocabulary lists containing groundless

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