- Definitions|2
- Thesaurus|856
- Abbreviations|0
298 entries under adjective topic. ×
| true | |
| unremitting(hard, tough, harsh, grim) | |
| unsparing(mean, strong, hard, tough) | |
| unstoppable(harsh, cruel, determined, fierce) | |
| unswerving(determined, resolute, uncompromising, unshakeable) | |
| vicious(mean, evil, nasty, harsh) | |
| vindicatory | |
| willful(determined, resolute, uncompromising, unshakeable) | |
| astringent(strong, hard, tough, severe) | |
| austere(appearance, mean, strong, hard) | |
| authoritarian(strong, hard, tough, severe) | |
| avaricious(hard, tough, harsh, cruel) | |
| bestial(animal, mean, severe, evil) | |
| bloodthirsty(severe, evil, nasty, harsh) | |
| bloody(hard, tough, harsh, cruel) | |
| bound(harsh, cruel, determined, fierce) | |
| bound and determined(expression, idiom, harsh, cruel) | |
| brutish(evil, nasty, harsh, violent) | |
| bullhead(mean, hard, tough, harsh) | |
| by the book(expression, idiom, strong, hard) |
For more, visit
Implacable on
Power Thesaurus
| APA | Smart Define. (2016). implacable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/implacable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "implacable thesaurus" https://smartdefine.org/implacable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, implacable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/implacable/thesaurus/synonyms>. |
| MLA | Smart Define. "implacable thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/implacable/thesaurus/synonyms> |