Bite - nip and rapid -fast are synonyms while the rest are antonyms. Bite and nip are synonyms because it is the same action described differently. The same is for rapid and fast. Being innocent means to not have done anything but being guilty is having done something. For example, two people are in a court and the judge is deciding who the criminal is, the person who did nothing wrong is innocent and the person who committed the crime is guilty. Insult and compliment are antonyms because they mean two different things. An insult is rude while a compliment is kind. Pass and fail is pretty obvious as well as permanent and temporary. They are opposites of each other, therefore are antonyms.