opportunistic russian

• соглаша́тельский

  conciliatory, compromising, appeasing, opportunistically agreeable

• выга́дывающий

  opportunistic, self-interested, gain-seeking

• переобува́вшийся

  one who has changed their shoes

  opportunistic, fickle, one who has changed their stance/opinion

• переобува́ющийся

  flip-flopping, opportunistic, someone who frequently changes their stance

• подга́дывающий

  timing well, choosing the right moment, opportunistic

• политика́нствующий

  politicking, demagogic, opportunistic (in a political sense)

• прима́завшийся

  latched on, opportunistically attached, freeloading

• прима́зывающийся

  ingratiating, opportunistic, free-riding, trying to associate oneself (with)

Examples

• Ты оппортуни́ст.You're opportunistic.
• Вы оппортуни́ст.You're opportunistic.