Synonyms|1kAntonyms|253|Broader|5Narrower|1Related|546

443 entries under adjective topic. ×

7
precision(exact, strict, scrupulous, detailed)
7
right on target(exact, strict, scrupulous, detailed)
7
spartan(severe, economical)
7
true blue(exact, strict, scrupulous, detailed)
7
well-directed(exact, strict, scrupulous, detailed)
6
adamant(strong, hard, tough, harsh)
6
astringent(strong, hard, tough, severe)
6
attentive(thoughtful, sober, cautious, prudent)
6
burdensome(hard, severe, rough, difficult)
6
finical
6
fussy(harsh, thoughtful, sober, rigid)
6
intense
6
keen(severe, careful)
6
onerous(hard, severe, rough, difficult)
6
subtle(feature, slight, difference)
6
true(noun, correct, right, appropriate)
6
unrelenting(strong, hard, tough, severe)
5
Draconian(tough, severe, firm, harsh)
5
extreme(severe, harsh, cruel, brutal)
5
immovable(set, strong, hard, tough)
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ChicagoSmart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, rigorous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>.
MLASmart Define. "rigorous thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms>