undeletable
Cannot be removed
Undeletable describes something that cannot be deleted or removed.
The term appears most often in computing contexts—an undeletable file resists normal removal attempts, whether by design or corruption: The system created an undeletable folder.
Outside technology, undeletable suggests permanence: Some memories feel undeletable.
Impossible to remove
- permanentFixed without end
- stainLasting surface discoloration
- tattooPermanent dermal design
- markVisible impression or sign
scar · etching · engraving · branding · ink · dye · imprint · watermark
indelible
Impossible to remove
mark · scar · etching · engraving · branding · ink · dye · imprint · watermark · trace
unforgettable
Permanently fixed in memory
- hauntingDisturbingly unforgettable
- traumaticCausing severe emotional damage
- ingrainedFirmly established by habit
imprinted · seared · vivid · lasting · persistent · indelible · embedded · deep-rooted · formative · visceral
permanent
Fixed without end
- irrecoverableImpossible to regain
- protectedKept from harm
- lockedFastened with a mechanism
archived · cached · backup · stored · synced · cloud · server · database · file · record