Being a match for something means to have comparable or equal skills, abilities, or qualities to a particular thing or person. The antonyms, or opposite meanings, for this phrase could include "inferior," "unmatched," "inadequate," or "unsuitable." These words suggest a lack of ability or adequacy in comparison with the thing or person being matched. Another antonym could be "superior," meaning to be above or beyond comparison or equal to the thing being matched. These antonyms remind us that being a match for something requires effort, skill, and an ability to compete at the desired level, and that not everyone or everything is up to the challenge.