opportunistic

Từ điển Oxford Advanced Learner 8th

op·por·tun·is·tic [opportunistic] BrE [ˌɒpətjuːˈnɪstɪk] NAmE [ˌɑːpərtuːˈnɪstɪk] adjective
1. (disapproving) = ↑opportunist
2. only before noun (medical)harmful to people whose ↑immune system has been made weak by disease or drugs
•an opportunistic infection

• Từ đồng nghĩa / Synonyms:
  opportunist, timeserving