please give me a word

[zhengrong]

Does this kind of word exist in English?
This word should be an adjective.
This word is used to describe something never go out or it will be impossible to be out-of-date.
If this word doesn't exist, how can I express this correctly by English?

[David L.]

'timeless' seems to be the best that comes to my mind specifically referring to something not going out of date.

[jamiep]

Eternal and everlasting are possible words but it will help if you tell us what you want to describe in this way.

[zhengrong]

Arh yes, with my poor English, you must be hard to understand what I wnat to say.
Under this circumstance, I agued with somebody to say some machines made by US that won't be advanced forever. I used irony to express one day it will be out-of-date.
But in this situation, out-of-date is not a word I want to use, you see, I always like to use some words formally.

So I said: " In your mind, any machine made by US wouldn't be out-of-date forever".
But I think such sentence only me understand it, not some one whose native language is English. So I come here to ask help. I need a word to replace that "won't be out-of-date".

[pumpjockey]

tell your friend:

Nothing lasts forever....
don't matter where its made..

Also you can call him a yankee lover!

(just kidding now, nobody get upset):)

[susiedqq]

In your mind, any machine made by US wouldn't be out-of-date forever".

I think you want to say,


"A machine made in the US won't be current forever."

Machines have a "life" of usefulness. They will become out-of-date when the new version comes on the market. Everyone wants the new, cutting-edge. latest model edition. No machine lasts forever in the market. (But the machine itself will still run, but no one wants to use it anymore. Kind of like my printer )