ETYM Latin immortalis; pref. im- not + mortalis mortal: cf. French immortel. Related to Mortal, Immortelle.
Not subject to death.
ETYM Pref. im- not + perishable: cf. French impérissable.
Not perishable.
1. Not losing color or freshness
2. Not losing value or effectiveness
In an immortal manner, deathlessly, eternally, without end
Endurably, lastingly, indestructibly