The antonyms for the word "more decurtate" are "elongate," "extend," "lengthen," "prolong," "stretch," and "elongated." These antonyms indicate the opposite meaning of "more decurtate," which means to shorten or reduce. If something is elongated, it is made longer. On the other hand, if something is prolonged, it is extended beyond its usual time or duration. Lengthen means to make something longer in this context, while an extension implies moving something outwards or elongating it. Finally, if something is stretched, it is made taut or pulled to increase its length.