Synonyms of groundless

groundless

adjective

ˈgrau̇n(d)-ləs 

as in unreasonable

having no basis in reason or fact

please stop making groundless accusations against innocent people

fears of a strike proved groundless

Synonyms & Similar Words

• unreasonable
• unfounded
• baseless
• unsubstantiated
• unwarranted
• irrational
• unsupported
• false
• invalid
• unreasoned
• unnecessary
• absurd
• illogical
• misleading
• foundationless
• meaningless
• fallacious
• weak
• specious
• untenable
• inconsistent
• unsound
• nonvalid
• wrong
• implausible
• unconscionable
• misled
• unconvincing
• flimsy
• gratuitous
• stupid
• uncalled-for
• nonsensical
• foolish
• nonlogical
• asinine
• fatuous
• preposterous
• silly
• unwise
• insane
• brainless
• lunatic
• ill-advised
• harebrained
• simpleminded
• mad
• nutty
• senseless
• wacky
• whacky
• crazy
• crackpot
• half-witted

Antonyms & Near Antonyms

• reasonable
• valid
• justified
• good
• hard
• reasoned
• just
• well-founded
• confirmed
• rational
• substantiated
• certified
• logical
• well-grounded
• true
• real
• actual
• informed
• sensible
• wise
• validated
• genuine
• certain
• sane
• sober
• sure
• verified
• corroborated
• plausible
• clear
• credible
• sound
• solid
• compelling
• persuasive
• commonsense
• convincing
• satisfying
• cogent

Example Sentences

Recent Examples of groundless

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. —Michael Hiltzik, Los Angeles Times, 3 Dec. 2024

That’s based on the groundless notion that disability is easy to apply for and receive. —Michael Hiltzik, Los Angeles Times, 26 Nov. 2024

While the other governors’ concern is probably groundless, the new reserves are proving politically useful for some in this era of fearmongering politicos. —Thomas Elias, The Mercury News, 1 Nov. 2024

The upshot is that the AI can computationally generate a response that appears to be accurate but is groundless and not based on facts. —Lance Eliot, Forbes, 1 Nov. 2024