Synonyms of toughen
- 2 Syllables
- harden, temper, season, tighten, anneals, strengthen, hardens, tightens, anneal, strengthens
- 3 Syllables
- weathered, vitrify, strengthening, annealing, develop, pillared, tightening, weathering, tightened, annealed, reinforcing, inuring, vitrifying, pillaring, inure, inured, reinforce, strengthened, callouses, calloused
- 4 Syllables
- rigidify, caseharden, acclimating, climatize, acclimate, indurating, indurated, indurate, acclimated, brutalize
- 5 Syllables
- acclimatize