42 entries under persistent topic. ×

20
protracted(verb, adjective, dull, strong, great)
9
lingering(adjective, dull, great, continue, low)
9
sustained(verb, adjective, great, slow, deep)
8
lasting(adjective, great, deep, high)
5
chronic(adjective, continue, constant, lasting)
4
lifelong(adjective, lasting, durable, remaining)
3
abiding(adjective, lasting, remaining, continued)
3
continuous(adjective, constant, lasting, unremitting)
3
enduring(adjective, great, deep, high)
3
perennial(adjective, lasting, durable, remaining)
2
ceaseless(adjective, lasting, remaining)
2
confirmed(verb, lasting, remaining)
2
continual(adjective, constant, lasting, remaining)
2
continuing(adjective, continue, lasting, remaining)
2
long-standing(lasting, remaining)
1
constant(steady, stable, regular, lasting)
1
routine(adjective, lasting, remaining)
0
deep-rooted(lasting, remaining)
0
deep-seated(lasting, remaining)
0
ever-present(lasting, remaining)
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APASmart Define. (2015). prolonged thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/prolonged/thesaurus/synonyms
ChicagoSmart Define. 2015. "prolonged thesaurus" https://smartdefine.org/prolonged/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, prolonged thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/prolonged/thesaurus/synonyms>.
MLASmart Define. "prolonged thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/prolonged/thesaurus/synonyms>