Synonyms|324Antonyms|60|Broader|8Narrower|1Related|63
2
pitilessness
2
punctilio
2
punctiliousness
2
relentlessness
2
rigorism
2
savagery
2
scrupulousness
2
sternness
1
absolute zero
1
absoluteness
1
abstinence
1
abstruseness
1
acerbity
1
acidity
1
acridity
1
acrimony
1
acuteness
1
adverse circumstances
1
adversity
1
affliction
For more, visit Rigour on Power Thesaurus
11 years ago|5.7k views|share |citing 
APASmart Define. (2015). rigour thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rigour/thesaurus/synonyms
ChicagoSmart Define. 2015. "rigour thesaurus" https://smartdefine.org/rigour/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, rigour thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rigour/thesaurus/synonyms>.
MLASmart Define. "rigour thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/rigour/thesaurus/synonyms>