requiring

Definitions

Needing something as a necessary condition or requirement.

Demanding or calling for something as a matter of necessity or obligation.

Examples

The complex project is requiring more time and resources than we initially anticipated.

Many professional certifications are requiring candidates to complete a certain number of continuing education hours.

Synonyms

demanding needing essential compulsory obligatory pressing vital

Antonyms

optional unnecessary dispensable voluntary nonessential gratuitous needless