When we talk about antonyms for the phrase "amuse oneself", we are referring to actions that are not entertaining or fun. Some antonyms for the phrase are "bore oneself", "tire oneself", "worry oneself", and "stress oneself". These are activities that can leave someone feeling drained or unhappy, rather than feeling refreshed or energized. For example, instead of amusing oneself by watching a comedy movie, one might find themselves bored while watching a mundane documentary. To avoid feeling drained by such activities, it's important to find ways to entertain oneself that are enjoyable and fulfilling. One can try new hobbies, meet new people, or simply explore new places to find activities that bring joy and excitement.