190 entries under tough topic. ×

1
take-charge(adjective, strong, energetic, powerful)
1
take-over(adjective, strong, intense, energetic)
1
terrible(adjective, rough, difficult, heavy)
1
thriving(strong, fit, healthy, well)
1
tiger(strong, fit, healthy, well)
1
tiring(adjective, rough, difficult, heavy)
1
unflagging(adjective, strong, sound, fit)
1
unkind(adjective, severe, nasty, harsh)
1
unrelenting(adjective, strong, hard, severe)
1
uphill battle(expression, adjective, rough, difficult)
1
well(strong, fit, healthy, robust)
1
zappy(strong, fit, healthy, well)
1
zealous(adjective, strong, energetic, powerful)
0
acrimonious(adjective, severe, harsh, grim)
0
antagonistic(adjective, severe, harsh, grim)
0
bullheaded(adjective, strong, hard, sturdy)
0
by the book(expression, adjective, idiom, strong, hard)
0
cold(adjective, severe, harsh, cruel)
0
cold-blooded(adjective, harsh, violent, vicious)
0
cold fish(expression, adjective, harsh, grim)
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APASmart Define. (2015). rugged thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/rugged/thesaurus/synonyms
ChicagoSmart Define. 2015. "rugged thesaurus" https://smartdefine.org/rugged/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, rugged thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/rugged/thesaurus/synonyms>.
MLASmart Define. "rugged thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/rugged/thesaurus/synonyms>