This is the 11523rd most frequent Russian word.
достаточного
"Sufficient" or "enough."
Here, "достаточно" is an adverb, meaning "sufficient" or "enough," indicating an adequate amount of time.
Для завершения этого проекта требуется достаточно времени.
Completing this project requires sufficient time.
In this sentence, "достаточно" serves as an adjective, qualifying "причин" (reasons) to suggest adequacy.
У него было достаточно причин для такого поступка.
He had sufficient reasons for such an action.
The word "достаточно" functions here as an adverb, explaining the adequacy of the stated amount for the payment.