Impenetrable Thesaurus / Synonyms / page 4

- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0

Synonyms|713 Antonyms|152|Broader|9 Narrower|8 Related|663

66 entries under toughened topic. ×

0	unaffected(adjective, hard, unfeeling, unsympathetic, hardened)
0	unconcerned(adjective, hard, unfeeling, unsympathetic, hardened)
0	unimpressionable(adjective, hard, unfeeling, unsympathetic, hardened)
0	unresponsive(adjective, hard, unfeeling, unsympathetic, hardened)
0	unsentimental(adjective, cynical, hard-boiled, hard-bitten)
0	unsympathetic(adjective, hard, cruel, unfeeling, hardened)

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APA	Smart Define. (2015). impenetrable thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/impenetrable/thesaurus/synonyms
Chicago	Smart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/synonyms (accessed September 30, 2026).
Harvard	Smart Define 2015, impenetrable thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/synonyms>.
MLA	Smart Define. "impenetrable thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/impenetrable/thesaurus/synonyms>

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adjective compact dark deep dense hard hardened heavy mysterious obscure rigid set solid stiff strange supernaturaltoughenedunbending unfeeling unsympathetic