harden

a hardened lava flow.

a case-hardened steel anvil.

the snow hardened and compacted.

troops who had been seasoned in combat.See Synonyms at harden

was hardened to life on the frontier;

the silos are hardened against air attack.

The earth hardens under the hot sun.

You may leave the jelly in a cool place to harden it.

I hardened my heart against him.

He is becoming hardened to failure.

It will take days for the new shell to harden.

He says Ring and other technologies like it can harden racial barriers.

As the death toll amounts, so seemed that resolve by the protesters hardened.

The spoon drops and cools off to harden.

Hal's theory, which he practised on others, was that one must get hardened.

Both extreme cold and extreme heat will ruin clay statues before they can harden.

It's basically the same as nail polish, but it hasn't fully hardened yet.

You know it looks to me like some sort of cake hardened with the years.

Fibrosis causes hardening of the affected area, which is commonly in the limbs.

Also, fibrosis starts to develop, and the limbs harden and increase in size.