60 entries under insistent topic. ×

18
strict(adjective, hard, tough, easy, severe)
18
critical(adjective, hard, tough, severe, difficult)
13
stern(adjective, hard, easy, severe, rough)
12
exigent(adjective, hard, tough, firm, difficult)
8
persistent(adjective, obstinate, dogged)
5
relentless(adjective, severe, difficult, persistent, obstinate)
4
clamorous(adjective, hard, tough, firm, difficult)
4
contrary(adjective, severe, difficult, cross, persistent)
4
firm(adjective, persistent, obstinate, dogged)
4
heavy(adjective, dull, tough, severe, rough)
4
urgent(adjective, hard, tough, firm, difficult)
3
determined(adjective, persistent, obstinate, dogged)
3
hidebound(adjective, severe, persistent, obstinate)
3
importunate(adjective, hard, tough, firm, difficult)
3
intractable(adjective, tough, persistent, obstinate, problematic)
3
pressing(verb, adjective, hard, tough, firm)
2
adamant(adjective, persistent, obstinate, dogged)
2
compelling(adjective, severe, important, serious, stiff)
2
crying(adjective, firm, important, serious, persistent)
2
inexorable(adjective, persistent, obstinate, dogged)
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APASmart Define. (2015). demanding thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/demanding/thesaurus/synonyms
ChicagoSmart Define. 2015. "demanding thesaurus" https://smartdefine.org/demanding/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
MLASmart Define. "demanding thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/demanding/thesaurus/synonyms>