simple past tense and past participle of prolong
"The committee prolonged the meeting until late in the evening, having previously prolonged several other sessions throughout the day."
In plain English: To prolong something means to make it last longer than usual by delaying its end.
"The doctor prolonged my stay at the hospital by keeping me there for an extra day to monitor my condition."
relatively long in duration; tediously protracted
"a drawn-out argument"
"an extended discussion"
"a lengthy visit from her mother-in-law"
"a prolonged and bitter struggle"
"protracted negotiations"
drawn out or made longer spatially
"Picasso's elongated Don Quixote"
"lengthened skirts are fashionable this year"
"the extended airport runways can accommodate larger planes"
"a prolonged black line across the page"
lengthy in duration; extended; protracted.
"The prolonged rainstorm lasted for three days straight, flooding several neighborhoods."
In plain English: Prolonged means something that lasts for a very long time without ending soon.
"The prolonged rain kept us inside all day."
Usage: Use prolonged to describe events or conditions that last longer than usual, such as a prolonged illness or drought. It is often confused with the verb prolong, which means to make something continue for more time.