permanent

Something that’s permanent is constant and lasting, as opposed to temporary. Think twice about writing in permanent marker or getting a tattoo — both are just about impossible to erase.

If you wait around for something permanent to change, you'll be there for a long time — maybe forever. That's because the adjective permanent is used to describe something that continues on into the foreseeable future without shifting, moving, or changing at all. You might also come across the noun permanent, which refers to a chemical treatment used to curl your hair. But please know that "perms" aren't really cool anymore.

Definitions of permanent
1

adj continuing or enduring without marked change in status or condition or place

permanent secretary to the president”
permanent address”
“literature of permanent value”
Synonyms:
lasting
unchangeable
not changeable or subject to change
ineradicable
not able to be destroyed or rooted out
abiding, enduring, imperishable
unceasing
aeonian, ageless, eonian, eternal, everlasting, perpetual, unceasing, unending
continuing forever or indefinitely
indissoluble
used of decisions and contracts
standing
not created for a particular occasion
stable
resistant to change of position or condition
Antonyms:
impermanent, temporary
not permanent; not lasting
acting
serving temporarily especially as a substitute
ephemeral, fugacious, passing, short-lived, transient, transitory
lasting a very short time
episodic
limited in duration to a single episode
evanescent
tending to vanish like vapor
fly-by-night
ephemeral
improvised, jury-rigged, makeshift
done or made using whatever is available
interim
serving during an intermediate interval of time
pro tem, pro tempore
for the time being
shipboard
casual or ephemeral as if taking place on board a ship
temporal
not eternal
terminable
capable of being terminated after a designated time
working
adopted as a temporary basis for further work
unstable
lacking stability or fixity or firmness
show more antonyms...

adj not capable of being reversed or returned to the original condition

permanent brain damage”
Synonyms:
irreversible
incapable of being reversed

n a series of waves in the hair made by applying heat and chemicals

Synonyms:
perm, permanent wave
Type of:
wave
a hairdo that creates undulations in the hair

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