0
practised
0
professional(experienced, hardened, veteran)
0
qualified(experienced, hardened, veteran)
0
revitalized
0
ruggedized
0
sintered
0
skillful(experienced, hardened, veteran)
0
stolid
0
sunburned
0
sustained
0
tactless(unsympathetic, obtuse)
0
tanned
0
tested(experienced, hardened, veteran)
0
tolerated
0
tried(experienced, hardened, veteran)
0
uninfringeable
0
urged on
0
versed in(expression, experienced, hardened, veteran)
0
very difficult(expression, idiom)
0
vet(experienced, hardened, veteran)
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APASmart Define. (2015). toughened thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toughened/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughened thesaurus" https://smartdefine.org/toughened/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, toughened thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toughened/thesaurus/synonyms>.
MLASmart Define. "toughened thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/toughened/thesaurus/synonyms>