Antonyms for the phrase "in disrepair" are words that suggest a state of good condition or well-maintained status. These could include "well-maintained," "functional," "immaculate," "pristine," "spotless," "tidy," "orderly," "well-kept," "neat," "clean," "pristine," "untarnished," and "tidy." These antonyms suggest a space or object that is in working order, clean, and free from damage. Words that convey a sense of upkeep and maintenance are appropriate antonyms for the phrase "in disrepair." The use of these antonyms can highlight the benefits of good maintenance practices and motivate individuals and organizations to take better care of their environments.