Susceptible means someone or something can catch a disease easily or is affected by a particular situation.
When we say that someone is susceptible to getting sick, it usually means they have a weak immune system. This could be because they're already ill, taking medication that makes them more vulnerable, or just not eating well. We might also use this word for something like a city being susceptible to flooding - in other words, it's prone to water damage when heavy rain hits. It can also mean someone is easily influenced by ideas or opinions, so they might be susceptible to buying into a scam if it sounds too good to be true.
A person who is vulnerable to being infected by a certain disease
Likely to be affected by something
Example: He was susceptible to minor ailments.
