Intransient is a word that is often used to describe something that is unchanging or permanent. Synonyms for intransient include words like immutable, unalterable, and permanent. Other synonyms for intransient might include words like steadfast, unwavering, and resolute. These words all describe something that is not likely to change, regardless of the circumstances. Other synonyms for intransient might include words like enduring, lasting, and persistent. These words all describe something that is likely to remain consistent over time, and that is not easily influenced or swayed by external factors.