What does inaccurate mean?
Inaccurate means not accurate: it describes information, measurements, accounts, or representations that are wrong, incomplete, or not exact. The word is useful because it identifies a discrepancy between what is stated or presented and what is actually the case. It can apply to relatively small errors, such as a slightly mistaken measurement, or to serious distortions, such as a false account of an event. In formal writing, inaccurate is often used to evaluate reports, data, estimates, translations, and descriptions. The related nouns inaccuracy and inaccurately describe the quality of being wrong or the manner of doing something incorrectly. Although inaccurate can imply that something is misleading, it does not necessarily mean deliberately deceptive; a person may make an inaccurate statement through carelessness, misunderstanding, or limited knowledge. Its straightforward negative meaning makes it a useful term whenever precision and factual reliability matter.
adjectiveNot accurate; containing errors or failing to represent something exactly.
- Not accurate; containing errors or failing to represent something exactly.
"The report gave an inaccurate account of the events."
"The model's prediction was inaccurate because the underlying data was outdated."
"Her description of the painting was wildly inaccurate, although she had visited the gallery only once."
A small prefix can reverse the meaning of a word: in- turns accurate into inaccurate, making error part of the definition.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of inaccurate
Inaccurate was formed in English by combining the negative prefix in- with accurate, reversing the meaning of the older word. Accurate comes from Latin accuratus, meaning “made exact” or “sharpened,” a form related to accurare, “to attend carefully,” which ultimately draws on Latin cura, “care.” The same family includes accuracy and accurately, while curate is a more distant English borrowing from the same Latin root concerned with care.
Related word forms
How inaccurate is actually used
Inaccurate is a neutral, widely used adjective. It is common in formal and informal contexts for describing information, measurements, descriptions, memories, and representations. It can suggest either a minor lack of precision or a substantial error, depending on context.
Easily confused with inaccurate
Accurate means correct and exact, whereas inaccurate means containing errors or failing to represent something exactly.