fixed; that you cannot discuss or change before you make an agreement or a decision不可谈判的；不可更改的◆Some details of the contract are non-negotiable.合同的某些细节没有商量的余地。◆a non-negotiable price不可更改的价格 () that you cannot exchange for money or give to another person in exchange for money不可转让的◆non-negotiable securities不可转让证券OPPnegotiable