grossly inadequate

Translations
крайне недостаточный
The resources provided were grossly inadequate for the task.
Предоставленные ресурсы были крайне недостаточны для выполнения задачи.
Definitions
Significantly insufficient or lacking in quality, quantity, or effectiveness, often to a degree that is shocking or unacceptable.
Words
grossly

adverb
крайне
inadequate

adjective
недостаточный