1. Not subject to change.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• changlles,
• hengeless,
• changees,
• chargeless,
• changelles,
• channeles,
• changless,
• changles,
• changess,
• xhangeless,
• vhangeless,
• fhangeless,
• dhangeless,
• chaqngeless,
• changeles,
• chanegless,
• change less,
• changels,
• cheareless,
• Chaingless

• chancellor,
• changeling,
• changes,
• chancel.

The adjective form of the word "changeless" is "unchanging".

The plural form of the word "changeless" is "changelesses".

The singular form of the word "changeless" is "changeless". The word does not change in its form whether it is singular or plural.