The antonyms for the phrase "am on strike" include the opposite of protesting or striking. Some possible antonyms may include working, cooperating, or accepting. If someone is not on strike, they may be working diligently, performing their duties without complaint, or accepting their current work conditions without challenge. They may also be collaborating with others to achieve shared goals, rather than refusing to work in solidarity with others who are protesting. Depending on the context, different antonyms may be more applicable, but in general, they represent a rejection of the idea of resistance or non-compliance with work activities.