Synonyms|266Antonyms|6|Broader|1Narrower|4Related|4

150 entries under adjective topic. ×

1
hard-core(strong, hard, tough, severe)
1
hard-line(strong, hard, tough, severe)
1
hard-nosed(strong, hard, tough, severe)
1
hard-shell(strong, hard, tough, severe)
1
hard-working(careful, earnest, thorough, strenuous)
1
hardheaded(strong, hard, tough, severe)
1
harsh(strong, hard, tough, severe)
1
implacable(strong, hard, tough, severe)
1
in a groove(expression, idiom, exact, regular)
1
in line(expression, solid, modest, polite)
1
inexorable(strong, hard, tough, severe)
1
inflexible(strong, hard, tough, severe)
1
iron-fisted(severe, harsh, stiff, rigid)
1
ironclad(severe, harsh, stiff, rigid)
1
logical(exact, careful, regular, precise)
1
methodized(exact, careful, regular, neat)
1
meticulous(exact, careful, regular, precise)
1
mortified(strong, hard, tough, severe)
1
mulish(strong, hard, tough, severe)
1
neat(exact, careful, regular, precise)
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ChicagoSmart Define. 2013. "by the book thesaurus" https://smartdefine.org/by_the_book/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2013, by the book thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/by_the_book/thesaurus/synonyms>.
MLASmart Define. "by the book thesaurus" 19 May 2013. Web. 30 September 2026. <https://smartdefine.org/by_the_book/thesaurus/synonyms>