Main entry: permanent, lasting
Definition: continuing or enduring without marked change in status or condition or place
Usage: permanent secretary to the president; permanent address; literature of permanent value
Antonyms: impermanent, temporary
Definition: not permanent; not lasting
Definition: (of persons) having the torso erect and legs bent with the body supported on the buttocks
Antonyms: running
Definition: executed or initiated by running
Antonyms: running
Definition: (of fluids) moving or issuing in a stream
Antonyms: perishable
Definition: liable to perish; subject to destruction or death or decay
Main entry: lasting, persistent
Definition: retained; not shed
Usage: persistent leaves remain attached past maturity; the persistent gills of fishes
Main entry: lasting
Definition: lasting a long time without change
Usage: a lasting relationship
Antonyms: unstable
Definition: lacking stability or fixity or firmness
Main entry: durable, lasting, long-lasting, long-lived
Definition: existing for a long time
Usage: hopes for a durable peace; a long-lasting friendship
Antonyms: short
Definition: (primarily spatial sense) having little length or lacking in length
Antonyms: short
Definition: primarily temporal sense; indicating or being or seeming to be limited in duration
Antonyms: short
Definition: of speech sounds or syllables of relatively short duration
Antonyms: short
Definition: not holding securities or commodities that one sells in expectation of a fall in prices