What is the Opposite(Antonym) of “nonpathogenic”?

The Opposite(Antonym) of “nonpathogenic”

The antonyms of nonpathogenic are pathogenic, infectious, and virulent. These words describe microorganisms that can cause diseases or infections in humans, animals, or plants.

Explore all Antonyms of “nonpathogenic”

Definitions and Examples of pathogenic, infectious, virulent

Learn when and how to use these words with these examples!

Capable of causing disease or infection.


The laboratory identified the bacteria as pathogenic and advised the patient to take antibiotics.

Capable of spreading from one person, animal, or plant to another through contact, air, or other means.


The flu is an infectious disease that can spread rapidly in crowded places.

Extremely harmful, dangerous, or deadly.


The new strain of the virus was more virulent than the previous one and caused more severe symptoms.

Key Differences: pathogenic vs infectious vs virulent

  • 1Pathogenic refers to microorganisms that can cause disease or infection.
  • 2Infectious describes diseases that can spread from one person, animal, or plant to another.
  • 3Virulent describes microorganisms that are extremely harmful, dangerous, or deadly.

Effective Usage of pathogenic, infectious, virulent

  • 1Medical Context: Use these antonyms to describe microorganisms that cause diseases or infections.
  • 2Scientific Research: Incorporate these words in scientific papers or presentations to describe the characteristics of microorganisms.
  • 3Public Health: Use these antonyms to educate people about the risks of certain diseases or infections.

Remember this!

The antonyms pathogenic, infectious, and virulent describe microorganisms that can cause diseases or infections. They differ in their nuances: Pathogenic refers to the ability to cause disease, infectious describes the ability to spread from one person, animal, or plant to another, and virulent describes the degree of harm or danger. Use these words in medical contexts, scientific research, or public health education.

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