"Wholehog" is a slang term that means complete or total. Some antonyms for "wholehog" include incomplete, incomplete, partial, or fraction. Another antonym for "wholehog" is "half-hearted," which means lack of commitment or enthusiasm. "Selective" is also an antonym for "wholehog," which means choosing some things and leaving others or being discriminating. "Gradual, step-by-step" or "gradual" also opposes the idea of "wholehog," meaning it is done bit by bit or gradually. If a person is not in favor of going all-out when achieving something, going step-by-step is the best option.