indestructible, unchanging, undestroyable, perdurable, long-wearing, fixed, long, abiding, imperishable, lasting, continuing, long-lived, long-lasting, immutable, long-standing, serviceable, continue, unchangeable.
aged (part of speech: adjective)
enduring (part of speech: verb)
stable (part of speech: adjective)
durable (part of speech: adjective)
Their food bags are of light, waterproof, and durable
material, and cost only from a dollar to a dollar and a half a dozen, according to size.
- "Camp and Trail", Stewart Edward White.
The different parties being no longer able to possess it in an exclusive and durable
manner, became discouraged, and fell back from public into private life.
- "History of the French Revolution from 1789 to 1814", F. A. M. Miguet.
If wood is used, only the most durable
kinds should enter into the construction of the house.
- "Manual of American Grape-Growing", U. P. Hedrick.