Toughened and Toughen

Toughened adjective - Able to withstand hardship, strain, or exposure.

Toughen is a synonym for toughened. In some cases you can use "Toughen" instead a verb "Toughened".

Nearby Word: toughening

Toughen verb - To increase the ability of (as a muscle) to exert physical force.

Toughened is a synonym for toughen. Sometimes you can replace term "Toughened" with "Toughen", this verbs are similar.

Nearby Words: tough, toughness, toughening, tougher