in opposition (to someone or something)
Opposed or contrary to someone or something; against someone or something. The purpose of our group is to stand in opposition to the corporations planning to move in and destroy local business. Our administration is in vehement opposition to any deal that gives them access to nuclear armaments.
in opposition (to someone or something)
against someone or something; opposing someone or something. You'll find that I'm firmly in opposition to any further expenditures. The council and the mayor are usually in opposition.