groundless

[ ground-lis ]

adjective

1. without rational basis:

   groundless fears.

   Synonyms: unjustified, idle, unfounded, baseless

groundless

/ ˈɡraʊndlɪs /

adjective

1. without reason or justification

   his suspicions were groundless

Derived Forms

• ˈgroundlessness, noun
• ˈgroundlessly, adverb

Other Words From

• groundless·ly adverb
• groundless·ness noun

Word History and Origins

Origin of groundless¹

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

Example Sentences

Amnesty International said at the time the charges against him were groundless and politically motivated.

From BBC

Yet there’s much more to be said about Ohanian’s original article, as well as the glee with which conservatives seized on its headline claim as the basis for largely groundless attacks on California’s economic policies.

From Los Angeles Times

That’s based on the groundless notion that disability is easy to apply for and receive.

From Los Angeles Times

Ms Nemtsova calls the student’s claims “groundless and manipulative” and he admits he has no actual evidence.

From BBC

Chinese state media has called this accusation "groundless".

From BBC

Related Words

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