Synonyms|40Antonyms|9|Broader|0Narrower|0Related|22
4
fortifies(verb, strengthens)
4
hardens(verb, strengthens)
4
reinforces(verb, strengthens)
4
strengthens(verb, strengthens)
4
tempers(noun, verb, strengthens)
3
braces(noun, verb, strengthens)
2
anneals
2
indurates
2
solidifies
2
stiffens
2
supports(verb, strengthens)
2
toughen
1
brutalizes
1
buttresses(verb, strengthens)
1
coarsens
1
concretes
1
empowers(verb, strengthens)
1
energizes(verb, strengthens)
1
enlivens(verb, strengthens)
1
inures
<12>
For more, visit Toughens on Power Thesaurus
13 years ago|1.6k views|share |citing 
APASmart Define. (2013). toughens thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/toughens/thesaurus/synonyms
ChicagoSmart Define. 2013. "toughens thesaurus" https://smartdefine.org/toughens/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, toughens thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/toughens/thesaurus/synonyms>.
MLASmart Define. "toughens thesaurus" 17 June 2013. Web. 20 September 2026. <https://smartdefine.org/toughens/thesaurus/synonyms>