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

Ojeda Duarte’s attorney argues the government’s admission that his deportation was erroneous is also an acknowledgment that authorities wrongfully detained him in the first place. — Laura Rodríguez Presa, Chicago Tribune, 29 June 2026

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