The concept of "committing oneself" generally implies a sense of dedication or devotion towards a particular cause or goal. However, there are several antonyms that can apply to this phrase, depending on the context. These may include words such as "avoids," which suggests a lack of interest or participation; "disengages," indicating a withdrawal from previous engagements or commitments; "renounces," which implies a deliberate rejection of previous beliefs or principles; and "neglects," which suggests a failure to prioritize or care about a given situation. Ultimately, the choice of antonym will depend on the specific circumstances and intentions involved, and may carry different connotations depending on the speaker's overall attitude and tone.