Self-sameness refers to the quality of remaining the same or unchanged over time. The antonyms for this word are numerous, representing different qualities and characteristics. One antonym for self-sameness is transformation or change, referring to the process of evolving and developing over time. Another antonym is diversity, implying the idea of having a range of different attributes or qualities. Variability, flexibility, and inconsistency are also antonyms for self-sameness, evoking the idea of shifting or fluctuating states. Similarly, improvisation, experimentation, and creativity suggest a willingness to take risks and try new things, breaking the monotony of self-sameness. Overall, the antonyms for self-sameness represent a rich tapestry of qualities, reflecting the complexity and diversity of the human experience.