Retract is defined as the action of withdrawing, pulling back or taking back something that has previously been stated. Antonyms are words that are opposite in meaning to the original word. For retract, some antonyms would be advance, expand, extend, release, or disclose. Advance is to move forward or to bring forward for consideration, whereas retract is to withdraw or take back a statement, so they are antonyms. Expand or extend are to make something larger or more extensive, while retract is to withdraw or take back something, making them antonyms. Release is to let go, whereas retract is to withdraw, so they are antonyms. Disclose is to reveal or make something known, whereas retract is to withdraw or take back, so they are antonyms.