ultrapermanent

adj

ultrapermanent

adj

Etymology From ultra- + permanent.

1

Of great permanence; very long-lasting.

PVC, the hard plastic polymer polyvinyl chloride, “is not a long-term, ultrapermanent material,” he said.2008 June 27, Billie Cohen, “Water, Soap and Open Air”, in New York Times:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.