English synonyms about - contact  

toughen

verb

1 toughen

Make tough or tougher.

Dutch: harden


Moby thesaurus: acclimate, acclimatize, anneal, be tough, beef up, brace, brace up, buttress, calcify, callous, case harden, confirm, cornify, develop, endure, firm, fortify, fossilize, gird, hang tough ... show more.

Find more on toughen elsewhere: etymology - rhymes - Wikipedia.

debug info: 0.0466