side against (one)

side against (one)

To take the opposing side of one in an argument, dispute, or conflict. I'm afraid the board of directors has sided against you in this case—we'll be expecting your resignation directly. You always side against me when your mother starts to criticize me.
See also: side
Farlex Dictionary of Idioms.

side against someone

to be against someone; to take sides against someone. I thought you were my friend! I never thought you would side against me! The two brothers were always siding against their sister.
See also: side
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

side against

Refuse to support, oppose in a dispute, as in The older club members sided against the new program director and her strenuous exercise programs . [First half of 1700s] For the antonym, see side with.
See also: side
The American Heritage® Dictionary of Idioms by Christine Ammer.

side against

v.
To align oneself against someone or something in a disagreement: Our opponents will side against the proposal if we don't revise it.
See also: side
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • side against
  • play (someone) off against (someone)
  • play both ends
  • play both ends against the middle
  • play both ends against the middle, to
  • play both sides against the middle
  • play each end against the other
  • play each side against the other
  • argue the point
  • turkey shoot