ad hoc

ad hoc • \AD-HOCK\ • adjective

1 a : concerned with a particular end or purpose 为此时此地某一特定目的的

b : formed or used for specific or immediate problems or needs 特别的，专门的

2 : fashioned from whatever is immediately available : improvised 临时的

Examples:

"[T]he spread of bike sharing has made millions of lives a bit easier and a bit better…. In more and more realms of life the convenient ad hoc access provided by digital systems is taking the place of the assured access once offered by personal ownership." 共享单车的普及让数百万人的生活变得更加轻松美好.... 生活中越来越多的领域不再采取那种过去由个人提供、有保证期的使用权，逐步取而代之的是由数字系统提供、方便的临时使用权。 — The Economist, 23 Dec. 2017

"Possible art projects … include a new mural, a music festival or concert series and a sculpture made from a dead tree in Montezuma Park. For each of these projects, the committee members agreed to form a temporary ad hoc committee made up of interested citizens with the expertise to plan them." 几个艺术项目可能包括一幅新壁画，一场音乐节或一个音乐会系列，以及一件由蒙特祖马公园枯树制成的雕塑。委员会的成员们同意为这些项目各自成立一个临时特设委员会，并由对安排规划在行的相关市民坐镇。 — Stephanie Alderton, The Journal (Cortez, Colorado), 24 Jan. 2018

Name That Synonym:

Fill in the blanks to complete a synonym of the adjective ad hoc meaning "improvised": _ _ t _ m _ _ r _ ne _ _ s.

Answer: extemporaneous*