prolonged

adjective

pro·​longed prə-ˈlȯŋd 

: continuing for a notably long time : extended in duration

a prolonged delay

a prolonged recession

a prolonged absence

a prolonged drought

And in today's competitive situation a prolonged strike can very easily lead to a serious loss of market share which is difficult, if not impossible, to recapture.

—David Reid

Sometimes the only answer is a prolonged time away from the sport followed by a slow, steady reconditioning program along with physiotherapy of some type …

—William J. Goldwag

prolongedly

prə-ˈlȯŋ-əd-lē 

adverb

… and Andy demonstrates … the odd talent of coughing in his sleep, coughing prolongedly without waking himself.

—John Updike

Examples of prolonged in a Sentence

Recent Examples on the Web

The robust performance has defied expectations amid a prolonged period of high interest rates, which have sent borrowing rates soaring for everything from mortgages to credit cards. —Max Zahn, ABC News, 18 May 2024

Now analysts are worried that prolonged levels of high debt may put investors off issuing U.S. bonds. —Ryan Hogg, Fortune Europe, 18 May 2024

Word History

First Known Use

circa 1525, in the meaning defined above