Synonyms of erroneous

erroneous

adjective

i-ˈrō-nē-əs 

as in inaccurate

not being in agreement with what is true

a poorly researched news article about the new virus that was filled with much erroneous information

Synonyms & Similar Words

• inaccurate
• incorrect
• wrong
• false
• misleading
• invalid
• untrue
• distorted
• untruthful
• inexact
• unsound
• off
• deceptive
• off base
• fraudulent
• spurious
• specious
• fictitious
• fallacious
• illusory
• counterfactual
• delusive
• mendacious
• deceitful
• dishonest
• delusory
• invented
• unproven
• awry
• unconfirmed
• lying
• amiss
• untested
• askew
• fabricated
• made-up
• trumped-up

Antonyms & Near Antonyms

• correct
• accurate
• proper
• true
• valid
• right
• factual
• exact
• precise
• sound
• confirmed
• demonstrated
• established
• errorless
• veracious
• perfect
• tested
• proven
• impeccable
• flawless
• faultless
• letter-perfect

Example Sentences

Recent Examples of erroneous

Federal prosecutors in New York, in a sweeping rebuttal spanning nearly 100 pages, called her claims speculative, factually erroneous and procedurally barred, according to a May 19 filing that was also unsealed Wednesday. — James Hill, ABC News, 24 June 2026

Although Rodman’s research shows that generative AI can help diagnose rare diseases or make sense of unusual symptoms, a randomized trial that was published in NEJM AI just the week before found that intentionally erroneous output from an AI model can easily lead doctors astray. — Benjamin Mazer, The Atlantic, 17 June 2026

The good news is, though, that while an erroneous freeze can cause big trouble with your bills, it can usually be reversed. — Angelica Leicht, CBS News, 15 June 2026

Judge Nicole Hopps last month increased his minimum term of incarceration to 60 years after granting his request to correct the erroneous sentence. — Tom Olsen, Twin Cities, 8 June 2026