opportunistic

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌɒpə^rtjuːˈnɪstɪk/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˌɑpɚtuˈnɪstɪk, -tju-/

US:USA pronunciation: respellingUSA pronunciation: respelling(op′ər to̅o̅ nis′tik, -tyo̅o̅-)

op•por•tun•is•tic adj.

following a policy of opportunism.
(of a disease or infection) caused by an organism that flourishes only in certain circumstances, as when the body is already weakened by another condition.

op•por•tun•is•tic adj.

Pathologyadhering to a policy of opportunism;
practicing opportunism.
Pathology
- (of a microorganism) causing disease only under certain conditions, as when a person's immune system is impaired.
- Pathology(of a disease or infection) caused by such an organism:Pneumocystis pneumonia is an opportunistic disease that often strikes victims of AIDS.

op′por•tun•is′ti•cal•ly, adv.

Collins Concise English Dictionary © HarperCollins Publishers::

opportunistic /ˌɒpətjʊˈnɪstɪk/ adj

of or characterized by opportunism
(of an infection) caused by any microorganism that is harmless to a healthy person but debilitates a person whose immune system has been weakened by disease or drug treatment

'opportunistic' also found in these entries (note: many are not synonyms or translations):

🗣️Forum discussions with the word(s) "opportunistic" in the title:

Go to Preferences page and choose from different actions for taps or mouse clicks.