Synonyms|384Antonyms|70|Broader|9Narrower|5Related|387

25 entries under diuturnity topic. ×

2
unrelenting
1
intransitive
0
intransmutable
0
of long-standing(expression, idiom)
0
sempervirid
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APASmart Define. (2015). perennial thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/perennial/thesaurus/synonyms
ChicagoSmart Define. 2015. "perennial thesaurus" https://smartdefine.org/perennial/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2015, perennial thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/perennial/thesaurus/synonyms>.
MLASmart Define. "perennial thesaurus" 10 April 2015. Web. 2 October 2026. <https://smartdefine.org/perennial/thesaurus/synonyms>