dormant
adj. B2 Upper Intermediate US //ˈdɔɹmənt// UK //dˈɔːmənt// dor·mant
adj. not active or growing right now, but able to become active again later. You use this for seeds, volcanoes, or plans that are waiting.
adj. temporarily inactive or at rest, with the potential to resume activity. Often used in scientific contexts for seeds or volcanoes, and metaphorically for ideas or organizations.
The volcano has been dormant for fifty years.
The old business plan remained dormant until the new manager found it.
From Middle English, from Old French, from Latin dormiēns, present participle of dormiō (“I sleep”).
Usage
Typically used predicatively after 'be' or attributively before a noun.