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

“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

"But all these claims are groundless and without proof."

From BBC

The corporation, incidentally, said "these continuing attacks on BBC journalism are completely groundless – it is simply false to say that we give any political party any less scrutiny than any other".

From BBC

Related Words

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