90 entries under toughen topic. ×
| buck up(verb, expression, phrasal verb, encourage, excite) | |
| buttress(verb, support, close, set, fix) | |
| season(verb, dull, close, set, develop) | |
| support(noun, verb, fix, increase, encourage) | |
| anneal(verb, support, close, set, fix) | |
| callous(verb, dull, close, set, fix) | |
| sustain(verb, support, increase, strength, establish) | |
| adapt(verb, make, dull, place, develop) | |
| adjust(verb, form, make, dull, place) | |
| bolster(verb, support, fix, increase, secure) | |
| brutalize(verb, dull, develop, rough, adjust) | |
| confirm(verb, support, increase, establish, extend) | |
| develop(verb, form, make, dull, place) | |
| enhance(verb, support, increase, establish, extend) | |
| grit teeth(verb, expression, idiom, prepare, strengthen) | |
| restore(verb, support, increase, encourage, strength) | |
| train(verb, form, make, dull, place) | |
| acclimate(verb, dull, close, set, develop) | |
| acclimatize(verb, dull, close, set, develop) | |
| accustom(verb, dull, develop, rough, prepare) |
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| APA | Smart Define. (2016). steel thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/steel/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "steel thesaurus" https://smartdefine.org/steel/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, steel thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/steel/thesaurus/synonyms>. |
| MLA | Smart Define. "steel thesaurus" 24 January 2016. Web. 1 October 2026. <https://smartdefine.org/steel/thesaurus/synonyms> |