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

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

Now, one population, transgender youth and collegians, are targeted for specific and baseless discrimination. — Jackson Thompson Outkick, FOXNews.com, 30 June 2026

On the evening of June 2, his baseless case was further undercut when Republican Steve Hilton won the second spot on November’s ballot for governor, up against Democrat Xavier Becerra. — Jackie Calmes, Mercury News, 19 June 2026

Skepticism of elections flared up recently in California after Trump made a baseless claim that Democrats were cheating to defeat a Republican candidate for governor and another for Los Angeles mayor. — Jesse Bedayn, Chicago Tribune, 16 June 2026

White House officials called those allegations baseless and asked a judge to dismiss the lawsuit. — Los Angeles Times, 11 June 2026