bindingbind·ing /ˈbaɪndɪŋ/ adjectiveadjLAW a binding contract/promise/agreement etc a promise, agreement etc that must be keptParticipants in the world trade talks have agreed to negotiate specific binding commitments.
a legally binding agreement between the parties
a binding contract/promise/agreement etc on/uponNo addition to these terms is binding on the buyer unless agreed in writing.