noninvasive

adjective

non·​in·​va·​sive ˌnän-in-ˈvā-siv 

-ziv

1

: not tending to spread

specifically : not tending to infiltrate and destroy healthy tissue

noninvasive cancer of the bladder

2

: not being or involving an invasive medical procedure

noninvasive imaging techniques

noninvasively adverb

Examples of noninvasive in a Sentence

noninvasive techniques of measuring brain activity

Recent Examples on the Web

There’s also the Espansione Group, which specializes in the design and manufacturing of noninvasive medical devices. —Footwear News, 21 Oct. 2025

How the brain test works The noninvasive test is an electroencephalogram, or EEG, which involves placing small electrodes on the scalp to record electrical activity in the brain. —Kristen Rogers, CNN Money, 12 Oct. 2025

Integrating such MOFs into sensor hardware would allow for sensitive, noninvasive screening for these two diseases, based on quantifiable breath markers. —Bohong Zhang, The Conversation, 10 Oct. 2025

Between the first 10 hours and three days after birth, the team observed how the newborns’ brains reacted to German, Hebrew and French by using functional near-infrared spectroscopy (fNIRS), a noninvasive imaging technique that measures changes in blood oxygenation in the brain. —Meghie Rodrigues, Scientific American, 7 Oct. 2025

Word History

First Known Use

1968, in the meaning defined at sense 1

Rhymes for noninvasive

• unpersuasive
• abrasive
• invasive
• persuasive
• pervasive

Medical Definition

noninvasive

adjective

non·​in·​va·​sive ˌnän-in-ˈvā-siv, -ziv 

1

: not tending to spread

specifically : not tending to infiltrate and destroy healthy tissue

noninvasive cancer of the bladder

2

: not being or involving an invasive medical procedure

noninvasive imaging techniques that do not require the injection of dyes

noninvasively adverb

noninvasiveness noun