93 entries under thicken topic. ×
| steel(verb, support, close, set, increase) | |
| acclimatize(verb, close, set, continue, firm) | |
| acclimate(verb, close, set, keep, overcome) | |
| brutalize(verb, corrupt, feel, strengthen, emotions) | |
| clot(verb, form, close, set, develop) | |
| anneal(verb, support, close, set, increase) | |
| compact(verb, close, set, develop, secure) | |
| dry(verb, take, close, set, settle) | |
| firm(verb, close, set, settle, solid) | |
| train(noun, verb, prepare, endure, adjust) | |
| concrete(verb, close, set, firm, solid) | |
| habituate(verb, study, develop, improve, prepare) | |
| callous(verb, close, set, settle, firm) | |
| coarsen(verb, feel, emotions, calcify) | |
| crystallize(verb, form, close, set, develop) | |
| prop(noun, verb, support, increase, sustain) | |
| adapt(verb, adjust, stabilize, toughen) | |
| adjust(verb, prepare, endure, adapt) | |
| conform(verb, adjust, adapt, stabilize) | |
| discipline(verb, study, develop, improve, prepare) |
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| APA | Smart Define. (2016). harden thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/harden/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "harden thesaurus" https://smartdefine.org/harden/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, harden thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/harden/thesaurus/synonyms>. |
| MLA | Smart Define. "harden thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/harden/thesaurus/synonyms> |