1. not requiring entry into the body through the skin or a body opening
Usage: medical
2. not tending to spread uncontrollably or harmfully
Usage: medical; biology
3. not interfering or intruding in an unwanted way

Examples

• The doctor recommended a noninvasive ultrasound instead of surgery.
• MRI scans are completely noninvasive and painless.
• The tumor was noninvasive and could be treated with medication.
• Scientists used noninvasive methods to study the wildlife.
• The security check was noninvasive and respectful of privacy.
• Noninvasive plants are preferred for landscaping projects.
• The researcher developed a noninvasive technique to monitor brain activity.