The word "re-vamped" means to renovate or refurbish something to give it a new look or improved functionality. The antonyms of "re-vamped" are those that denote the idea of leaving something as it is, without any change or improvement. Words like unaltered, unmodified, unchanged, or original can be used as opposites for re-vamped. While re-vamp means change, its antonyms reflect the idea of preserving something in its current state. For example, an old building can be re-vamped to make it look modern and functional or it can be preserved in its original state, without any changes or alterations.