contagioso
contagious, infectious
Translation
contagious, infectious
Explanation
Que se puede transmitir fácilmente de una persona a otra.
Examples
El resfriado es contagioso.
Su alegría es contagiosa.
Memory Aid
Sounds like 'contagious' — remember it spreads quickly. Note gender/ending: contagioso (m) / contagiosa (f).