The word "remained" means to stay, continue or persist in a particular state or condition. Its antonyms are words that denote movement, motion or action. Some of the antonyms of the word "remained" include depart, leave, evacuate, vacate, exit, abandon, withdraw, and move. These words signify that a person or object is leaving a particular place, state or condition. "Remained" is also synonymous with "stay," so words such as go, travel, proceed, and advance could be considered antonyms because they indicate movement away from a particular place or condition. It is essential to understand the antonyms of any word to convey its meaning adequately to the readers or listeners.