changeless

adjective

Remaining the same.

SYNONYMS

abidingconsistentconstantcontinuingendlessenduringeverlastingfastfixedimmutableindefiniteinvariablelastinglong-lastingnever-endingperennialpermanentperpetualpersistentstablestandingstaticsteadytimelessunalterableunchangeableunchangedunchangingundeviatingunendinguniformunvarying