- Definitions|2
- Thesaurus|805
- Abbreviations|0
174 entries under adjective topic. ×
| secret(evil, mysterious, threatening, nefarious) | |
| sinful(evil, mysterious, threatening, nefarious) | |
| steel(strong, hard, tough, sturdy) | |
| stern-visaged | |
| strait-laced | |
| strict(strong, hard, tough, severe) | |
| strong(hard, tough, sturdy, rugged) | |
| sturdy(strong, hard, tough, rugged) | |
| thick(strong, hard, tough, sturdy) | |
| unbending(strong, hard, tough, sturdy) | |
| uncompromising | |
| unyielding(strong, hard, tough, severe) | |
| vile(evil, mysterious, threatening, nefarious) | |
| wicked(evil, mysterious, threatening, nefarious) |
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| APA | Smart Define. (2015). frowning thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/frowning/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "frowning thesaurus" https://smartdefine.org/frowning/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, frowning thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/frowning/thesaurus/synonyms>. |
| MLA | Smart Define. "frowning thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/frowning/thesaurus/synonyms> |