What is another word for infectious?

Synonyms for infectious
ɪnˈfɛk ʃəsin·fec·tious

This thesaurus page is about all possible synonyms, equivalent, same meaning and similar words for the term infectious.


  1. infectiousadjective

    Able to infect others.

    Despite feeling better, the patient is still infectious.


  2. infectiousadjective

    Spreading quickly from one person to another.

    Her enthusiasm for work can be really infectious.


  3. infectiousadjective

    catching, contagious

  4. infectiousadjective

    catchy, contagious

Princeton's WordNet

  1. infectious, infectiveadjective

    caused by infection or capable of causing infection

    "viruses and other infective agents"; "a carrier remains infective without himself showing signs of the disease"

    infective, morbific, pathogenic

    nontransmissible, noncommunicable, noncontagious, noninfectious, antiseptic

  2. infectiousadjective

    easily spread

    "fear is exceedingly infectious; children catch it from their elders"- Bertrand Russell


    antiseptic, noninfectious, nontransmissible, noncontagious, noncommunicable

  3. infectiousadjective

    of or relating to infection

    "infectious hospital"; "infectious disease"


    antiseptic, noncontagious, noninfectious, nontransmissible, noncommunicable

Dictionary of English Synonymes

  1. infectiousadjective

    contagious, pestilential, pestiferous, catching

  2. infectiousadjective

    contaminating, corrupting, vitiating, poisoning, defiling

Synonyms, Antonyms & Associated Words

  1. infectiousadjective

    contagious, pestiferous, epidemic, vitiating

How to pronounce infectious?

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How to use infectious in a sentence?

  1. Michael Ward:

    When the humidity is lower, the air is drier and it makes the aerosols smaller, when you sneeze and cough those smaller infectious aerosols can stay suspended in the air for longer. That increases the exposure for other people. When the air is humid and the aerosols are larger and heavier, they fall and hit surfaces quicker.

  2. Gabriella Stern:

    Ebola jumped the ocean, if the next pandemic is an airborne infectious disease, it could spread way faster and worse than Ebola did. Healthier poor countries protect us from infectious diseases.

  3. David Heymann:

    Infectious agents travel around in humans many times within their incubation period.

  4. Tim Albrecht:

    She is the most positive, outspoken, friendly person you'll ever meet and she is definitely the epitome of the campaign mom. She makes everybody feel better and makes sure everybody's fed. You know her by her signature woohoo. You always know where Joni is. Her enthusiasm is infectious, and she without question is the top 'get' in terms of volunteers.

  5. The Red Sox:

    His home run in Game 5 of the 1986 ALCS was a signature moment in Red Sox history, we shared his unbridled joy when he hopped into the air as the ball cleared the fence in Anaheim. Hendu played just two seasons in Boston, but we always regarded him as one of us and are grateful for the time we were able to enjoy his talent and infectious personality. Everywhere he went, Henderson made friends. He was a great ambassador for our game, and we have lost him far too soon.

Translations for infectious

From our Multilingual Translation Dictionary

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    • A. cloistral
    • B. reclusive
    • C. secular
    • D. secluded

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