Synonyms|978Antonyms|160|Broader|11Narrower|8Related|1.2k

61 entries under rigorous topic. ×

2
operose(adjective, tough, severe, rough, difficult)
2
stiff(adjective, hard, tough, severe, rough)
2
testing(adjective, tough, severe, difficult, violent)
1
binding(adjective, severe, harsh, stiff, rigid)
1
by the book(expression, adjective, idiom, severe, stiff)
1
by the numbers(expression, adjective, idiom, severe, harsh)
1
confining(adjective, severe, harsh, cruel, stiff)
1
convincing(adjective, severe, harsh, stiff, rigid)
1
drawing(adjective, severe, harsh, stiff, rigid)
1
dyed-in-the-wool(adjective, severe, harsh, stiff, rigid)
1
forceful(adjective, severe, firm, difficult, stiff)
1
hard-nosed(adjective, severe, harsh, cruel, stiff)
1
iron-fisted(adjective, severe, harsh, stiff, rigid)
1
ironclad(adjective, severe, harsh, stiff, rigid)
1
murder(adjective, hard, tough, severe, rough)
1
poignant(adjective, severe, difficult, harsh, stiff)
1
powerful(adjective, severe, harsh, stiff, rigid)
1
unpermissive(adjective, hard, severe, rough, difficult)
1
valid(adjective, severe, harsh, stiff, rigid)
0
brick-wall(adjective, severe, stiff, rigid, tight)
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HarvardSmart Define 2015, demanding thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/demanding/thesaurus/synonyms>.
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