Adjective · (ˌ)i(m)-ˈmyü-tə-bəl</span> | ||
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| Roots Middle English, from Latin immutabilis, “unchangeable” (in- “not” + mutabilis “changeable”) | ||
| Close cousins changeless | ||
| Opposites mutable, nonimmutable | ||
| First known use 15th century |
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