What does unmodified mean?
Unmodified describes something that has not been changed, altered, or otherwise affected. It is commonly used for files, images, texts, scientific specimens, historical objects, legal documents, and digital data that remain in their original condition. The word is useful when the distinction between an original version and an altered version is important: the original document is unmodified, while the annotated copy is modified. In everyday conversation, unchanged and unaltered are often more approachable, but unmodified is especially appropriate in formal, technical, and record-keeping contexts. It can also describe something that was inspected, copied, preserved, or handled without any actual alteration taking place. Thus, unmodified is stronger and more precise than simply saying that nothing happened, since it specifically identifies the absence of modification.
adjectiveNot changed, altered, or otherwise modified; remaining in its original state.
- Not changed, altered, or otherwise modified; remaining in its original state.
"The specimen was preserved in an unmodified state for future study."
"The researchers compared the modified and unmodified versions of the tissue."
"Your original file will remain unmodified unless you choose to edit it."
Unmodified does not mean untouched: a file, specimen, or text can be examined or copied without being changed.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does unmodified come from?
The adjective unmodified was formed in English by combining the prefix un-, meaning “not” or “without,” with modified. Modified comes from modify, which was borrowed through Old French from Latin modificare, meaning “to alter” or “limit.” That Latin verb was derived from modus, meaning “measure,” “manner,” or “limit,” and the same root underlies modification, modifier, and modifiable.
How unmodified is actually used
Unmodified is a standard, neutral adjective in general English and is especially common in technical, scientific, legal, and digital contexts. It states that no alteration has taken place, without necessarily implying that the object was never examined or handled.
Easily confused with unmodified
Modified means that something has been changed or altered, whereas unmodified means that it has remained unchanged.