A sense of permanence can represent a feeling of security, stability, continuity, or durability. It could also denote a long-term outlook, consistency, steadfastness, or endurance. Another similar term might be the feeling of steadfast or unchanging, reflecting a sense of constancy and reliability. Additionally, the sense of longevity captures the idea of something lasting a long time, while sustainability refers to the ability to endure over time. Lastly, the term longevity suggests a lifespan or period of time that focuses on lasting for a prolonged period. Overall, these synonyms highlight a feeling of stability, dependability and resilience, which are all important when seeking a sense of permanence.