As the title states. I'm looking for a general term for permanent, temporary, etc. The best I could come up with so far is permanence, although after I looked at the definition I'm not sure that really makes sense.

  • Longevity and durability, like permanence, default to the 'long-lastingness' sense. However, Dictionary.com gives the example 'One way of measuring the durability of an airplane is to check how many of those built are still flying' which displays the 'how long-lasting?' sense Aug 18, 2020 at 10:49
  • @EdwinAshworth Agreed, I like persistence too as it has a similar connotation - maybe these kind of terms are the best that can be done :)
    – Nick Bull
    Aug 18, 2020 at 10:54
  • Perhaps [projected] lifespan is broadened enough for most purposes? Aug 18, 2020 at 14:05

1 Answer 1


A general term (which doesn't imply either side of the scale) is duration:

2 : the time during which something exists or lasts
// were there for the duration of the concert

An example sentence more suited to the question is the following:

Does it have a temporary or permanent duration?

In a form, duration could also be filled in with a particular time period.

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