Words similar to hardened

Example sentences for: hardened

How can you use “hardened” in a sentence? Here are some example sentences to help you improve your vocabulary:

This prevailing Common Strategy of cooperation and nonconfrontation meant that even a hardened cockpit door would have made little difference in a hijacking.
The Castle Rock and Arthur’s Seat are the remains of lava streams that hardened after the two volcanoes around them became dormant and cold.
He takes no bribes, vows never to plant evidence or to shoot hardened criminals instead of arresting them, and single-handedly dynamites the "blue wall of silence" when police are caught beating the hell out of a group of Latino suspects.
Even the most hardened aid workers refuse to operate in many regions, and some warn that Afghanistan is near the brink of chaos.
Before the injection they're quite friendly--these are lab animals, remember, not hardened street rats.