- Definitions|2
- Thesaurus|855
- Abbreviations|0
113 entries under adjective topic. ×
| flat | |
| homogeneous | |
| indefatigable | |
| indelible(permanent, long-term, lifelong) | |
| ineradicable(persistent, continuous, hardened, lasting) | |
| level | |
| lifetime | |
| monolithic | |
| robot-like | |
| sequential | |
| un-intermittent | |
| unalterable | |
| unbreakable | |
| without end(expression, continuous, lasting, permanent) | |
| yearlong(enduring, perpetual) | |
| chronical | |
| classic | |
| ever popular(expression, immortal) | |
| incoming | |
| inextirpable |
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| APA | Smart Define. (2015). perennial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/perennial/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "perennial thesaurus" https://smartdefine.org/perennial/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, perennial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/perennial/thesaurus/synonyms>. |
| MLA | Smart Define. "perennial thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/perennial/thesaurus/synonyms> |