Non-invasive or noninvasive?
non-invasive is an adjective meaning “Alternative form of noninvasive”; noninvasive is an adjective meaning “Not invasive”. non-invasive is written with a hyphen and noninvasive as one word; they are used differently.
What is the difference between non-invasive and noninvasive?
| non-invasive | noninvasive | |
|---|---|---|
| Part of speech | adjective | adjective |
| Meaning | Alternative form of noninvasive | Not invasive Of a surgical or other medical procedure, not requiring an incision |
| Example | none recorded | none recorded |
| Pronunciation | not recorded | not recorded |
| In writing | not counted (the list counts single words) | about once in every 3 million words |
Sources: non-invasive and noninvasive in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of non-invasive and noninvasive
non-invasive
- 1
Alternative form of noninvasive
noninvasive
- 1
Not invasive
- 2
Of a surgical or other medical procedure, not requiring an incision
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, non-invasive or noninvasive?
non-invasive is a phrase, which the list of single words does not count; noninvasive about once in every 3 million words.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).