- Definitions|2
- Thesaurus|574
- Abbreviations|0
170 entries under verb topic. ×
| underline(support, increase, boost, sustain) | |
| wax(support, increase, establish, extend) | |
| withstand(keep, overcome, endure, resist) | |
| braze(set, harden) | |
| bulwark(support, strengthen, reinforce) | |
| charge up(expression, support, strengthen, reinforce) | |
| chill(set, harden) | |
| desensitize | |
| embattle(support, strengthen, reinforce) | |
| entrench(support, strengthen, reinforce) | |
| enure | |
| erode | |
| establish(support, increase, extend, powerful) | |
| familiarize(adjust, adapt, harden) | |
| firm up(expression, phrasal verb, strengthen, harden) | |
| fit(prepare, qualify) | |
| garrison(support, strengthen, reinforce) | |
| hold up(expression, support, sustain, uphold) | |
| make ready(expression, harden) | |
| mature(prepare, qualify) |
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| APA | Smart Define. (2015). toughen thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toughen/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toughen thesaurus" https://smartdefine.org/toughen/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, toughen thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toughen/thesaurus/synonyms>. |
| MLA | Smart Define. "toughen thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/toughen/thesaurus/synonyms> |