1) Adverse 2) Anti 3) Averse 4) Con 5) Conflicting 6) Incompatible 7) Reluctant 8) Resisted 9) Unfavourable 10) Unwilling 1) Against 2) Anti 3) At odds 4) Contested 5) Contrary 6) Like a naysayer 7) Like nay voters 8) Like the nays 9) Naysaying 10) Not for 11) Objected to 12) Offered resistance 13) On the other side 14) Opposing 15) Ran against 16) Saying nay 17) Spoke out against 18) Took a stand against 19) Was contrary to 
• (imp. & p. p.) of Oppose
[adj] - in opposition to (a policy or attitude etc.) 2. [adj] - being in opposition or having an opponent
opposing adjective in opposition to (a policy or attitude etc.); `an opposing vote`