MEANING
1. Capable of causing or passing on infection.
2. Quickly communicated to others as a feeling or response.
Use it for
Words that belong together
- infectious disease
- infectious agent
On the page
The laboratory tested for an infectious agent.
The report described an infectious disease.
The symptom alone did not prove the condition was infectious.
Nearby words
Opposite meanings
Related words
Word forms
- Base
- infectious
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Usage notes
Primary category: horror. Forms: More infectious; most infectious where gradable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.
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