susceptible [səˈsɛptɪbl̩]adjective 6noun 1forms 3 adjective6 •Likely to be affected by something.He was susceptible to minor ailments. •Especially sensitive, particularly to a stimulus. •Vulnerable. •Easily influenced or tricked; credulous. •That, when subjected to a specific operation, will yield a specific result.Rational numbers are susceptible of description as quotients of two integers.A properly prepared surface is susceptible of an enduring paint job. •Amenable. noun1 •A person who is vulnerable to being infected by a certain diseaseIn either instance a decrease in the number of susceptibles, by making the spread of virus less easy, tends towards a stage at which the infection dies out. — 1983 formssusceptibles · more susceptible · most susceptible