opportunistic

形容词 opportunistic:

1. taking immediate advantage, often unethically, of any circumstance of possible benefit
   同义词：opportunist, timeserving

op.por.tun.is.tic

adj.（形容词）
Taking immediate advantage, often unethically, of any circumstance of possible benefit.
机会主义的：迅速抓住一切有利时机的，经常是违反规范的