The antonyms for the word "un-realized" are realized, actualized, fulfilled, achieved, accomplished, and completed. These terms refer to the achievement or successful implementation of a task, goal, or plan that was previously unrealized. Realized implies that a dream or idea has been brought into reality, while actualized refers to the fulfillment of a potential or possibility, such as a talent or skill. Fulfilled means that a desire or expectation has been satisfied or accomplished, and achieved implies the successful attainment of a particular goal or objective. Accomplished and completed both suggest the execution or completion of a task or project that was previously incomplete or unfinished.