- Definitions|1
- Thesaurus|293
- Abbreviations|0
19 entries under perpetual topic. ×
| old(adjective, permanent, recurrent, long-term) | |
| perennial(adjective, enduring, permanent, recurrent) | |
| lasting(adjective, vast, permanent, recurrent) | |
| abiding(permanent, recurrent, long-term, lifelong) | |
| constant(permanent, recurrent, long-term, lifelong) | |
| continual(permanent, recurrent, long-term, lifelong) | |
| continuing(fundamental, permanent, operating, recurrent) | |
| durable(permanent, recurrent, long-term, lifelong) | |
| enduring(permanent, recurrent, long-term, lifelong) | |
| eternal(vast, permanent, recurrent, long-term) | |
| everlasting(vast, permanent, recurrent, long-term) | |
| incessant(permanent, recurrent, long-term, lifelong) | |
| lifelong(adjective, permanent, recurrent, long-term) | |
| long-lasting(permanent, recurrent, long-term, lifelong) | |
| perdurable(fundamental, permanent, continuing, operating, recurrent) | |
| permanent(vast, recurrent, long-term, lifelong) | |
| unceasing(permanent, recurrent, long-term, lifelong) | |
| undying(permanent, recurrent, long-term, lifelong) | |
| unchanging(permanent, recurrent, long-term, lifelong) |
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| APA | Smart Define. (2013). longstanding thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/longstanding/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "longstanding thesaurus" https://smartdefine.org/longstanding/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2013, longstanding thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/longstanding/thesaurus/synonyms>. |
| MLA | Smart Define. "longstanding thesaurus" 27 June 2013. Web. 27 September 2026. <https://smartdefine.org/longstanding/thesaurus/synonyms> |