Permanent Definition

pûrmə-nənt

adjective

Lasting or intended to last indefinitely without change.

Webster's New World

Not expected to change in status, condition, or place.

A permanent address; permanent secretary to the president.

American Heritage

Lasting a relatively long time.

Webster's New World

Without end, eternal.

Nothing in this world is truly permanent.

Wiktionary

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Antonyms:

noun

A hair wave that is produced as by applying chemical preparations and that remains even after the hair is washed.

Webster's New World

A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.

Wiktionary

(linear algebra, combinatorics) Given an matrix , the sum over all permutations of .

Wiktionary

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verb

(dated) To perm (the hair).

Wiktionary

Synonyms:

Other Word Forms of Permanent

Singular:

permanent

Plural:

permanents

Middle English from Old French from Latin permanēns permanent- present participle of permanēre to endure per- throughout per– manēre to remain men-³ in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition
Used in English since 15th century, from Middle French permanent, from Latin permanens, from permanÄ“o (“I stay to the end").

From Wiktionary