- Definitions|2
- Thesaurus|3k
- Abbreviations|0
124 entries under tough topic. ×
| sturdy(adjective, close, strong, hard) | |
| willful(adjective, firm, determined, resolute) | |
| authoritarian(adjective, strong, hard, severe) | |
| true(adjective, strong, smooth, flat) | |
| unsparing(adjective, strong, hard, severe) | |
| bullheaded(adjective, strong, hard, firm) | |
| hard-core(adjective, strong, hard, severe) | |
| rough(adjective, person, strong, hard) | |
| unfeeling(adjective, mean, hard, severe) | |
| balky(adjective, firm, unreasonable, obstinate) | |
| compressed(adjective, set, strong, hard) | |
| condensed(adjective, hard, solid, rigid) | |
| dense(adjective, close, set, strong, hard) | |
| impenetrable(adjective, set, strong, hard) | |
| impervious(adjective, hard, solid, rigid) | |
| rebellious(adjective, firm, unreasonable, obstinate) | |
| strong(adjective, set, hard, flat) | |
| sure(adjective, strong, flat, firm) | |
| astringent(adjective, strong, hard, severe) | |
| bound(adjective, strong, flat, firm) |
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| APA | Smart Define. (2016). inflexible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/inflexible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inflexible thesaurus" https://smartdefine.org/inflexible/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, inflexible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/inflexible/thesaurus/synonyms>. |
| MLA | Smart Define. "inflexible thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/inflexible/thesaurus/synonyms> |