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

Examples Sentences

Recent Examples of groundless

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

Trump has long spread groundless claims about his opponents based on their personal history, particularly women and racial minorities. —Michelle L. Price, Fortune, 20 Oct. 2024

The rider who smashed his phone insisted in an interview with Chinese state media that the complaint lodged against him was groundless. —Chris Lau, CNN, 17 Oct. 2024