316 entries under adjective topic. ×

2
rugged(strong, hard, tough, severe)
2
savage
2
steely(strong, hard, tough, severe)
2
stiff
2
strenuous(tough, rough, difficult, harsh)
2
taxing
2
thick-skinned(tough, harsh, grim, painful)
2
thriftless(grand, extravagant, generous, abundant)
2
unmoved
2
unremitting
1
acceptable(good, kind, reasonable, fair)
1
adamantine(strong, hard, tough, sturdy)
1
arduous(tough, rough, difficult, harsh)
1
backbreaking(tough, rough, difficult, heavy)
1
big-hearted(good, kind, reasonable, fair)
1
bitter(strong, hard, tough, harsh)
1
brutish
1
bullheaded(strong, hard, tough, severe)
1
by the book(expression, idiom, strong, hard)
1
cold-blooded(tough, harsh, cruel, grim)
10 years ago|8.4k views|share |citing 
APASmart Define. (2016). unsparing thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsparing/thesaurus/synonyms
ChicagoSmart Define. 2016. "unsparing thesaurus" https://smartdefine.org/unsparing/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, unsparing thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsparing/thesaurus/synonyms>.
MLASmart Define. "unsparing thesaurus" 24 March 2016. Web. 28 September 2026. <https://smartdefine.org/unsparing/thesaurus/synonyms>