Definitions of opportunistic
if a crime is opportunistic, then that crime has been committed by someone because they have a chance to, and not because the crime was planned
He added: "British organised crime gangs are fluid, flexible and opportunistic".
if a person or thing is described as opportunistic then that person uses every opportunity (or one particular opportunity) to gain power, money, publicity or unfair advantages etc
This is an issue that should be decided by individuals and market forces, not by opportunistic politicians.