64 entries under protracted topic. ×

25
lasting(verb, adjective, great, strain, deep)
23
enduring(verb, adjective, great, strain, deep)
19
conservative(adjective, dull, strain, low, firmness)
18
sustained(adjective, great, strain, slow, deep)
9
long(adjective, time, great, deep, boring)
7
prolonged(adjective, dull, great, continue, low)
6
long-drawn-out(adjective, dull, great, low, slow)
6
time-consuming(adjective, dull, moderate, low, stiff)
5
extended(adjective, extensive, expanded, prolonged)
5
tardy(adjective, dull, low, slow, boring)
4
interminable(slow, late)
4
lengthy(adjective, great, slow, deep, boring)
3
long-winded(slow, boring, tedious, late, rambling)
2
backward(adjective, dull, moderate, low, slow)
2
dragged out
2
expanded(adjective, great, deep, high, remote)
2
late(adjective, dull, low, slow, boring)
2
lengthened(adjective, great, deep, high, remote)
2
spun out(verb, expression, adjective, phrasal verb, great)
1
behind(adjective, dull, moderate, low, stiff)
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APASmart Define. (2016). lingering thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/lingering/thesaurus/synonyms
ChicagoSmart Define. 2016. "lingering thesaurus" https://smartdefine.org/lingering/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, lingering thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/lingering/thesaurus/synonyms>.
MLASmart Define. "lingering thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/lingering/thesaurus/synonyms>