binding

Definitions

The action of fastening or holding things together.

A strong covering used to hold the pages of a book together.

Required by law or agreement; obligatory.

Examples

The contract is legally binding for both parties involved in the agreement.

She spent the afternoon working on the binding of her handmade journal.

Synonyms

obligatory compulsory mandatory irrevocable restrictive fastening unalterable

Antonyms

optional voluntary discretionary nonbinding flexible loose revocable