Antonyms for the phrase "be adapted for" include "be unsuited for," "be incompatible with," "be inadequate for," and "be inappropriate for." These antonyms convey the opposite meaning of the original phrase and imply that a particular object or service is not appropriate or suitable for a particular purpose. For instance, a car that is designed for speed and sporty driving may be unsuitable for a family with children, as it lacks the safety features and spaciousness required for comfortable family transportation. Similarly, a software application that is designed for specialized industries may be inappropriate for general users who require a more user-friendly and easy-to-use interface.