The word eventualize means to bring something to a conclusion or to make something happen over time. The antonyms for eventualize would be words or phrases that describe the opposite of this action, such as delay, postpone, or defer. These terms suggest that actions are not taken immediately or that important decisions are put on hold. Other antonyms for eventualize include abandon, cancel, or terminate, implying that something is ending abruptly or not reaching its intended goal. In short, the antonyms for eventualize depict stalling, halting, or ceasing, and they convey the idea of interruption and discontinuation of an intended event or action.