Synonyms for infectious
ɪnˈfɛk ʃəsin·fec·tious

WiktionaryRate these synonyms:2.3 / 10 votes

1. infectiousadjective

   Able to infect others.

   Despite feeling better, the patient is still infectious.

   Synonyms:
   contagious

2. infectiousadjective

   Spreading quickly from one person to another.

   Her enthusiasm for work can be really infectious.

   Synonyms:
   contagious

3. infectiousadjective

   Synonyms:
   catching, contagious

4. infectiousadjective

   Synonyms:
   catchy, contagious

Princeton's WordNetRate these synonyms:5.0 / 1 vote

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"

   Synonyms:
   infective, morbific, pathogenic

   Antonyms:
   nontransmissible, noncommunicable, noncontagious, noninfectious, antiseptic

2. infectiousadjective

   easily spread

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

   Synonyms:
   infective

   Antonyms:
   antiseptic, noninfectious, nontransmissible, noncontagious, noncommunicable

3. infectiousadjective

   of or relating to infection

   "infectious hospital"; "infectious disease"

   Synonyms:
   infective

   Antonyms:
   antiseptic, noncontagious, noninfectious, nontransmissible, noncommunicable

Dictionary of English SynonymesRate these synonyms:1.0 / 1 vote

1. infectiousadjective

   Synonyms:
   contagious, pestilential, pestiferous, catching

2. infectiousadjective

   Synonyms:
   contaminating, corrupting, vitiating, poisoning, defiling

Synonyms, Antonyms & Associated WordsRate these synonyms:1.0 / 2 votes

1. infectiousadjective

   Synonyms:
   contagious, pestiferous, epidemic, vitiating

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "infectious":

   contagious, infective, communicable, transmissible, infectivity, infection, ferry

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How to use infectious in a sentence?

1. Irene Eckstrand:

   Infectious disease models are never going to accurately predict the future, [They] are better at saying 'if we do this, here's the range of things that can happen.'.

2. Charles Chiu:

   Now that we know this variant is on the rise in our local communities, we are prioritizing it for study, researchers at UCSF and elsewhere will now be able to perform the critical laboratory experiments to determine whether or not this virus is more infectious or affects vaccine performance.

3. The CDC:

   With increasing distance from the source, the role of inhalation likewise increases, although infections through inhalation at distances greater than six feet from an infectious source are less likely than at closer distances, the phenomenon has been repeatedly documented under certain preventable circumstances.

4. Nancy Harrison:

   Hopefully, COVID will go away, but once that happens, there will always be infectious diseases, and we all need to ask ourselves what we can do to protect vulnerable nursing home residents going forward.

5. Jung Soon-kyun:

   Going through the MERS outbreak, the district government learned to build up an infectious disease response manual and store the necessary equipment, we are trying to respect infectious disease response manuals which prioritize early detection and testing.