Word: infectious
(of an illness) Transmitted from one person to another, usually through the air breathed. Example: Cancer is not infectious.
(of a person) Able to infect others. Example: Despite feeling better, the patient is still infectious.
(of feelings and behaviour) Spreading quickly from one person to another. Example: Her enthusiasm for work can be really infectious.
Memorable and invoking excitement or interest. Example: Pop music is more infectious than elevator music.
You can find a list of possible crossword clues for INFECTIOUS below.