Advantageous vs Opportunistic - What's the difference?

As adjectives the difference between advantageous and opportunistic

is that advantageous is being of advantage, beneficial while opportunistic is taking advantage of situations that arise.

(en adjective)

Being of advantage, beneficial

* 1900 , Joseph Conrad, Lord Jim Chapter 32

*:Jim took up an advantageous position and shepherded them out in a bunch through the doorway.

* gainful; profitable; useful; beneficial; behooveful

* advantageously

(en adjective)

taking advantage of situations that arise

:* The danger now isn't so much from the AIDS virus itself as from opportunistic infections.

said of people who will take advantage of situations to advance their own interests, without regard for principles

:* You can't trust somebody that opportunistic -- she'll stab you in the back the first chance she gets.

* nonopportunistic * opportunistically