This is the 11702nd most frequent Spanish word.
garantizado
Guaranteed.
Here, 'garantizado' functions as an adjective, describing a pledged assurance that the delivery will occur as affirmed.
La entrega del pedido está garantizada.
The delivery of the order is guaranteed.
In this sentence, 'garantizado' is used negatively, indicating that there is no assured pledge regarding the success of the method.
El éxito de este método no está garantizado.
The success of this method is not guaranteed.
The word 'garantizado' is part of the verb tense 'hemos garantizado', showing a completed action by the subject or that the subject has ensured something in the past.