1. in a way that cannot be changed or modified

Examples

• The treaty inalterably changed the relationship between the two nations.
• Her decision was inalterably fixed in her mind.
• The landscape was inalterably transformed by the earthquake.
• His character seemed inalterably honest and trustworthy.
• The new law inalterably shifted the balance of power.
• Their friendship was inalterably damaged by the betrayal.