Synonyms|178Antonyms|32|Broader|2Narrower|0Related|7

121 entries under adjective topic. ×

2
hard-nosed(strong, hard, tough, severe)
2
narrow-minded(persistent, obstinate, insistent, dogged)
2
obdurate(strong, hard, tough, severe)
2
obstinate(hard, tough, rough, firm)
2
puritan
2
stubborn(strong, hard, tough, rough)
2
unbending(strong, hard, tough, rough)
1
adamantine(strong, hard, tough, severe)
1
anal-retentive(persistent, obstinate, insistent, dogged)
1
astringent(strong, hard, tough, severe)
1
austere(strong, hard, tough, severe)
1
authoritarian(strong, hard, tough, severe)
1
bitter(strong, hard, tough, severe)
1
bloody-minded(persistent, obstinate, insistent, dogged)
1
bullheaded(strong, hard, tough, severe)
1
by the book(expression, idiom, strong, hard)
1
callous(hard, tough, severe, rough)
1
confirmed(persistent, obstinate, insistent, dogged)
1
contumacious(persistent, obstinate, insistent, dogged)
1
cruel(strong, hard, tough, severe)
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APASmart Define. (2015). hard-line thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/hard-line/thesaurus/synonyms
ChicagoSmart Define. 2015. "hard-line thesaurus" https://smartdefine.org/hard-line/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, hard-line thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/hard-line/thesaurus/synonyms>.
MLASmart Define. "hard-line thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/hard-line/thesaurus/synonyms>