Synonyms of toughened
- 2 Syllables
- temper, season, brass-bound, brassbound, strengthen, anneal, callous
- 3 Syllables
- hardened, thick-skinned, hard-as-nails, develop, inure, shatterproof, seasoned
- 4 Syllables
- unbreakable, climatize, acclimate, infrangible, nonbreakable, brutalize, case-hardened
- 5 Syllables
- acclimatize, casehardened