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.

In April 2023, however, the Cambodian authorities issued a letter in response to the programme, confirming Kuong Li as the owner of the Huang Le compound but dismissing the allegations as "groundless".

From BBC • Jan. 20, 2026

A Kremlin spokesman rejected the allegations as groundless.

From The Wall Street Journal • Dec. 12, 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

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Awkward

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Because They Marched

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!