Synonyms of baseless

baseless

adjective

as in unreasonable

having no basis in reason or fact

baseless rumors that the baseball player was using steroids

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Example Sentences

Recent Examples of baseless

Judge Lebovits ruled in favor with the Times according to New York State’s Anti-SLAPP law, which protects against baseless legal proceedings stemming from attempts to stifle the press or free speech. — Fran Hoepfner, Vulture, 28 July 2026

Trump’s narrow loss in Arizona in 2020 and his subsequent — and baseless — insistence that fraud accounted for the defeat has fueled an election denialism that Arizona voters have rarely rewarded. — Arizona Republic, AZCentral.com, 21 July 2026

In an address from the White House tonight, the president sought to reveal proof for his baseless assertions of a 2020 vote marred by fraud. — Michael Scherer, The Atlantic, 17 July 2026

Trump has spread baseless claims of widespread election fraud for years. — Kevin Rector, Los Angeles Times, 16 July 2026

These charges were so baseless that the Cook County State’s Attorney declined to prosecute me and expunged my name and the charge from the record. — Literary Hub, 14 July 2026

State Senator Tony Strickland, who represents Huntington and Newport Beach, said those concerns were baseless. — Haley Parsley, Sacbee.com, 9 July 2026

The grand jury subpoena was filed in April and was almost immediately met with resistance from Fulton County officials, who argued the request was overreaching and came from baseless claims of election fraud six years ago. — Irene Wright, USA Today, 8 July 2026

Fulton County will continue to do all that is needed to assure Georgia citizens that our election process is fair and proper and to show that the attacks against it are baseless. — Alexander Mallin, ABC News, 7 July 2026