- Definitions|2
- Thesaurus|431
- Abbreviations|0
48 entries under adjective topic. ×
| incessant(permanent, durable, recurrent, perpetual) | |
| long | |
| abiding(fixed, persistent, hardened, lasting) | |
| continual(fixed, persistent, continuous, lasting) | |
| continuous(fixed, persistent, lasting, continuing) | |
| for life(expression, idiom, lasting, longstanding) | |
| indissoluble(permanent, long-term) | |
| interminable | |
| lengthy | |
| long-life | |
| long-standing(persistent, continuous, hardened, lasting) | |
| strong | |
| undying(permanent, recurrent, perpetual, long-term) | |
| protracted(persistent, continuous, lasting, continuing) | |
| deep-rooted(fixed, persistent, hardened, lasting) | |
| longstanding(permanent, recurrent, perpetual, long-term) | |
| ongoing(permanent, long-term) | |
| stable(permanent, long-term) | |
| sturdy | |
| tenacious(persistent, continuous, lasting, continuing) |
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| APA | Smart Define. (2015). lifelong thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/lifelong/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "lifelong thesaurus" https://smartdefine.org/lifelong/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, lifelong thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lifelong/thesaurus/synonyms>. |
| MLA | Smart Define. "lifelong thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/lifelong/thesaurus/synonyms> |