Akademik

opportunist
I
noun
a person who places expediency above principle
Syn: ↑self-seeker
Derivationally related forms: ↑opportunism
Hypernyms: ↑selfish person
Hyponyms:
backscratcher, ↑bottom feeder, ↑carpetbagger, ↑hustler, ↑wheeler dealer, ↑operator, ↑timeserver
II
adjective
taking immediate advantage, often unethically, of any circumstance of possible benefit
Syn: ↑opportunistic, ↑timeserving
Similar to: ↑expedient
Derivationally related forms: ↑opportunism (for: ↑opportunistic)

Useful english dictionary. 2012.