Adjective of Age

Imperishable

Never becoming weaker with age

Perpetual

Continuing for ever in the same way

Fresh

New

Youthful

Having the qualities that are typical of young people

Infinite

Without limits

Persistent

Difficult to get rid of

Ceaseless

Seeming to have no end

Durable

Able to last and be used for a long time without becoming damaged

Fixed

Not possible to change

Old

Existed for many years