Antonyms are words that have opposite meanings to a particular word. For "non participating," the antonyms could be "participating," "engaged," "committed," "involved," "active," and "contributing." These antonyms suggest a level of involvement and participation in a particular activity, program, or project. They indicate that an individual's presence in the said activity is pivotal and required to achieve a common goal or objective. In contrast, "non participating" means someone who is not engaged in the activity or program as expected. These antonyms help us understand the significance of active participation and encourage us to be more involved in activities that matter to us.