opportunistic
adjective /ˌɒpətjuːˈnɪstɪk/
/ˌɑːpərtuːˈnɪstɪk/
- (also opportunist)(disapproving) making use of an opportunity, especially to get an advantage for yourself; not done in a planned way
- [only before noun] (medical) harmful to people whose immune system has been made weak by disease or drugs
- an opportunistic infection