Generally not gradable; comparative and superlative forms are rare/non-standard.
Translations
The project required multiple resources to be completed on time.
Le projet nécessitait des ressources multiples pour être achevé à temps.
Definitions
Consisting of, having, or involving several or many individuals, parts, elements, or components. The project required multiple resources to be completed on time.
Relating to or involving more than one instance, occurrence, or event. She had multiple appointments scheduled for the same day.