Definition of on the outs in English:

on the outs

phrase

(also British at outs)
  • In disagreement or dispute.

    • ‘he was on the outs with his coach again’
    conflicting, in conflict, contrasting, incompatible, irreconcilable, antithetical, contradictory, clashing, contrary, different, differing, divergent, dissimilar, disagreeing, in disagreement, at odds, at cross purposes, at loggerheads, opposed, opposing, opposite, in opposition, poles apart, polar, at outs