Synonyms|316Antonyms|26|Broader|0Narrower|0Related|141
1
eternal
1
everlasting
1
expressed
1
extended
1
extreme(adjective, dedicated)
1
fanatic
1
fanatical
1
far
1
far left
1
fast(adjective, close, correct, firm, honest)
1
fierce(noun, hector)
1
fiery
1
final
1
fixed
1
flaming
1
foolhardy(determined, impulsive, stubborn, reckless, impetuous)
1
forbidding(adjective, strong, hard, tough, severe)
1
froward(determined, impulsive, stubborn, reckless, impetuous)
1
frowning(adjective, strong, hard, tough, severe)
1
funded
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APASmart Define. (2016). hard-core thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/hard-core/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-core thesaurus" https://smartdefine.org/hard-core/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, hard-core thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/hard-core/thesaurus/synonyms>.
MLASmart Define. "hard-core thesaurus" 28 March 2016. Web. 23 September 2026. <https://smartdefine.org/hard-core/thesaurus/synonyms>