prolongable
Able to continue
Prolongable describes something capable of being extended in duration.
A prolongable contract can be renewed past its original term.
A prolongable visit might stretch beyond what was planned.
The word is straightforward but uncommon—extendable or renewable often serve the same purpose.
Able to be lengthened
- expandableAble to be enlarged
- stretchableCapable of being extended
- adjustableAble to be changed
- scalableAble to increase capacity
flexible · elastic · telescopic · retractable · resizable · adaptable · modifiable · enlargeable
Able to endure long-term
- maintainableCapable of being kept up
- preservableCan be maintained
- renewableCapable of restoration
- continuableAble to be sustained
supportable · viable · durable · lasting · enduring · persistent · ongoing · self-sustaining
extensible
Able to be lengthened
- expandableAble to be enlarged
- stretchableCapable of being extended
- adjustableAble to be changed
scalable · flexible · elastic · telescopic · retractable · resizable · adaptable · modifiable · enlargeable · variable
sustainable
Able to endure long-term
- maintainableCapable of being kept up
- preservableCan be maintained
- renewableCapable of restoration
continuable · supportable · viable · durable · lasting · enduring · persistent · ongoing · self-sustaining · repeatable
duration
Length of existence
- extensionAdded part or duration
- continuationAct of proceeding further
- protractionLengthening in duration
interval · timespan · period · length · span · timeline · stretch · expanse · term · phase
prolongablefixed
Restored or immovable
finite · unextendable · limited · terminable · bounded
long, prolong, prolonged, lengthen, elongate, longevity, longitude, elongation, prolonging