Antonyms for the phrase "give a tryout" may include the following: refuse, decline, deny, reject, dismiss, disapprove, ignore, neglect, overlook, and disregard. These words indicate a reluctance or unwillingness to test or evaluate something or someone. On the other hand, synonyms for "give a tryout" include phrases like "test the waters," "put to the test," "experiment with," or "trial run." These words suggest a willingness to explore and assess new ideas, projects, or individuals. Ultimately, whether applying antonyms or synonyms, one's attitude towards giving something a tryout will determine the level of success achieved.