Synonyms|1kAntonyms|253|Broader|5Narrower|1Related|546

87 entries under rigid topic. ×

1
unwavering
1
uptight(adjective, tough, severe, firm, harsh)
0
hard-and-fast(hard, resolute, inflexible, strict)
0
ironfisted(tough, scrupulous)
0
no-nonsense(adjective, tough, severe, firm, harsh)
0
staunch(hard, resolute, inflexible, strict)
0
unswayable(hard, resolute, inflexible, strict)
For more, visit Rigorous on Power Thesaurus
10 years ago|17k views|share |citing 
APASmart Define. (2016). rigorous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/rigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "rigorous thesaurus" https://smartdefine.org/rigorous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, rigorous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/rigorous/thesaurus/synonyms>.
MLASmart Define. "rigorous thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/rigorous/thesaurus/synonyms>