The word "disburse" means to pay out or expend money. Its antonyms would be words that describe the opposite action of withholding or conserving funds. One antonym could be "save," as in saving money for a later time, instead of spending it immediately. Another antonym could be "hoard," which means to accumulate money without spending it or letting others access it. "Withhold" is another antonym, meaning to delay or refuse payment or distribution of funds. "Retain" is also an antonym, indicating the action of holding onto money or keeping it in one's possession rather than disbursing it.