Case hardened and Case-hardened

Case-hardened and case hardened are semantically related. In some cases you can use "Case-hardened" instead an adjective phrase "Case hardened".

Case-hardened adjective - Having or showing a lack of sympathy or tender feelings.

Case hardened and case-hardened are semantically related. Sometimes you can replace phrase "Case hardened" with "Case-hardened", this phrases are similar.