opportunistic
🇺🇸
/ˌɑːpərtuːˈnɪstɪk/
🇬🇧
/ˌɒpətjuːˈnɪstɪk/
Taking advantage of a situation to achieve success or gain.
She is known for her opportunistic approach to business, always ready to seize the moment.
Causing harm especially to those with weakened immune systems.
The patient is susceptible to opportunistic infections due to the chemotherapy.