B2adjectivehealthemotions
US/ɪnˈfek.ʃəs/
UK/ɪnˈfek.ʃəs/
able to pass quickly between people; said of diseases, and also of laughter or a good mood
In context
Measles is one of the most infectious diseases in the world.
Patients with infectious illnesses are kept in a separate ward.
Her laugh is so infectious that the whole class joined in.
Words that go with infectious
adjective + noun
- infectious diseaseShe is a doctor who specializes in infectious diseases.
- infectious laughOur tour guide had an infectious laugh that made everyone smile.
- infectious enthusiasmHis infectious enthusiasm got the whole team excited about the project.
- infectious agentScientists are still trying to identify the infectious agent.
adverb + adjective
- highly infectiousThe new variant is highly infectious but usually mild.