Synonyms|122Antonyms|2|Broader|0Narrower|0Related|4

27 entries under severe topic. ×

1
crucial(great, heavy, weighty)
1
deep(adjective, tough, important, significant)
1
far-reaching(adjective, tough, important, significant)
1
fateful(adjective, tough, important, significant)
1
fell(weighty, aper, demoniac, crucial)
1
formidable(adjective, tough, important, significant)
1
grave(adjective, great, tough, heavy)
1
hard(adjective, tough, important, significant)
1
heavy(great, weighty, crucial)
1
laborious(adjective, tough, important, significant)
1
major(great, heavy, weighty, crucial)
1
meaning business(expression, adjective, tough, important)
1
meaningful(adjective, tough, important, significant)
1
no joke(expression, adjective, tough, important)
1
no laughing matter(expression, adjective, idiom, tough)
1
of consequence(expression, adjective, tough, important)
1
operose(adjective, tough, important, significant)
1
out for blood(expression, adjective, idiom, tough)
1
smoking(adjective, tough, important, significant)
1
sobering(adjective, tough, important, significant)
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APASmart Define. (2011). playing hard ball thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/playing_hard_ball/thesaurus/synonyms
ChicagoSmart Define. 2011. "playing hard ball thesaurus" https://smartdefine.org/playing_hard_ball/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2011, playing hard ball thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/playing_hard_ball/thesaurus/synonyms>.
MLASmart Define. "playing hard ball thesaurus" 24 May 2011. Web. 27 September 2026. <https://smartdefine.org/playing_hard_ball/thesaurus/synonyms>