Synonyms|466Antonyms|97|Broader|6Narrower|0Related|125
9
peremptory(adjective, demanding)
9
persevering(adjective, resolute, demanding, tenacious)
8
instant(adjective, immediate, urgent)
8
pertinacious(adjective, determined, resolute, obstinate, uncompromising)
8
pressing(adjective, hard, tough, firm, difficult)
7
forceful(adjective, strong, firm, energetic, powerful)
7
bold(adjective, resolute, tenacious)
7
business-minded
7
imperative(adjective, important, serious, critical, vital)
6
imperious(adjective, demanding)
6
indefatigable(adjective, resolute, tenacious)
5
adamantine(adjective, determined, resolute, uncompromising, unshakeable)
5
categorical(adjective, energetic, unequivocal, affirmative)
5
certain(adjective, firm, energetic, self-assured, self-confident)
5
constant(adjective, resolute)
5
diligent(adjective, resolute, tenacious)
5
exacting
5
indomitable(adjective, resolute, tenacious)
5
positive(adjective, affirmative)
5
repetitive(adjective, repetitious)
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HarvardSmart Define 2015, insistent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/insistent/thesaurus/synonyms>.
MLASmart Define. "insistent thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/insistent/thesaurus/synonyms>