- Definitions|1
- Thesaurus|270
- Abbreviations|0
188 entries under adjective topic. ×
| ingrained(continue, confirmed) | |
| intractable(determined, persistent, impulsive, obstinate) | |
| refractory(determined, persistent, impulsive, obstinate) | |
| settled(continue, confirmed) | |
| strict(strong, hard, tough, severe) | |
| ungovernable(determined, persistent, impulsive, obstinate) | |
| unruly(determined, persistent, impulsive, obstinate) | |
| accepted | |
| accustomed | |
| adamant(strong, hard, tough, sturdy) | |
| anal-retentive(persistent, obstinate, insistent, dogged) | |
| astringent(strong, hard, tough, severe) | |
| austere(strong, hard, tough, severe) | |
| authoritarian(strong, hard, tough, severe) | |
| bitter(strong, hard, tough, severe) | |
| bloody-minded(persistent, obstinate, insistent, dogged) | |
| bullheaded(strong, hard, tough, severe) | |
| by the book(expression, idiom, strong, hard) | |
| cantankerous(persistent, obstinate, insistent, dogged) | |
| chronic |
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| APA | Smart Define. (2013). hard-shell thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hard-shell/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "hard-shell thesaurus" https://smartdefine.org/hard-shell/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2013, hard-shell thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hard-shell/thesaurus/synonyms>. |
| MLA | Smart Define. "hard-shell thesaurus" 17 June 2013. Web. 21 September 2026. <https://smartdefine.org/hard-shell/thesaurus/synonyms> |