Under a handicap refers to a situation where a person or group of people face an obstacle or disadvantage that makes it difficult to achieve a particular goal. Synonyms for this phrase include "at a disadvantage", "hindered", "restricted", "handicapped", and "impeded". These terms convey a sense of limitation or difficulty, as though the individual or group is working against external forces. They are often used in sports, where athletes may be competing under certain handicaps or disabilities. However, they can also be applied to any situation where someone is facing an obstacle or challenge that makes achieving their goal more difficult than it might otherwise be.