groundless

American  

[ground-lis] / ˈgraʊnd lɪs /

adjective

1. without rational basis.

   groundless fears.

   Synonyms:

   idle, unjustified, unfounded, baseless

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groundless British  

/ ˈɡraʊndlɪs /

adjective

1. without reason or justification

   his suspicions were groundless

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Other Word Forms

• groundlessly adverb
• groundlessness noun

Etymology

Origin of groundless

before 900; Middle English: bottomless, unfathomable; Old English grundlēas. See ground ¹, -less

Example Sentences

A Kremlin spokesman rejected the allegations as groundless.

From The Wall Street Journal

China accused Britain's Keir Starmer of making "groundless accusations" on Tuesday, a day after the prime minister said he would engage with Beijing but warned China posed a national security threat.

From Barron's

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

From The Wall Street Journal

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

Beijing at the time called the accusations "groundless".

From Barron's

Related Words

• baseless
• false
• flimsy
• gratuitous
• illogical
• illusory
• unfounded
• unjustified
• unsupported
• unwarranted