Similar words: harden, hard-earned, gardener, overburdened, landscape gardener, garden, warden, ardent. Meaning: ['hɑrdn /'hɑː-] 
adj. 1. used of persons; emotionally hardened 2. made hard or flexible or resilient especially by heat treatment 3. protected against attack (especially by nuclear weapons) 4. made tough by habitual exposure 5. converted to solid form (as concrete).
adj. 1. used of persons; emotionally hardened 2. made hard or flexible or resilient especially by heat treatment 3. protected against attack (especially by nuclear weapons) 4. made tough by habitual exposure 5. converted to solid form (as concrete). 
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1. He is becoming hardened to failure.
2. Their suspicions hardened into certainty.
3. The snow hardened until ice was formed.
4. With the temprature cool, magma would be hardened into rock.
5. Your bread has hardened, how long?
6. Her face hardened into an expression of hatred.
7. Their hands hardened when they worked on the farm.
8. Attitudes to the strike have hardened on both sides.
9. The viewpoints of the two parties hardened.
10. His face hardened momentarily, then he looked away.
11. They had been hardened to the horrors of war.
12. Doctors are hardened to the sight of blood.
13. His mind hardened as he became used to difficulty.
14. His face hardened when talked about the battle.
15. I hardened my heart against him.
16. Public attitudes to the strike have hardened.
17. He became hardened to the suffering around him.
18. He had turned into an embittered, hardened adult.
19. Joe sounded different, hardened by the war.
20. All of a sudden my heart hardened against her.
21. Sand was deposited which hardened into sandstone.
22. The positions of the two sides hardened.
23. The incident hardened her resolve to leave the company.
24. They were hardened criminals .
25. Her years of drunken bickering hardened my heart.
26. The river has hardened up.
27. Life has hardened me.
28. He hardened his voice when he saw she wasn't listening.
29. Teenagers should not be sent to prison to mix with hardened criminals .
30. Some of the fallen trees had left a clear impression in the hardened mud.
More similar words: harden, hard-earned, gardener, overburdened, landscape gardener, garden, warden, ardent, ardently, gardening, herb garden, maddened, reddened, garden rake, emboldened, victory garden, botanical garden, burden, larder, warder, unburden, boarder, guarded, bearded, disburden, retarded, overburden, burdensome, opened, unguarded.