prolonged

pro·long  (pr-lông, -lng)

tr.v. pro·longed, pro·long·ing, pro·longs

1. To lengthen in duration; protract.

2. To lengthen in extent.

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[Middle English prolongen, from Old French prolonguer, from Late Latin prlongre : Latin pr-, forth; see pro-¹ + Latin longus, long; see del-¹ in Indo-European roots.]

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pro·longer n.

Thesaurus

Adj.	1.	prolonged - 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, extended, lengthy, protracted long - primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified; "a long life"; "a long boring speech"; "a long time"; "a long friendship"; "a long game"; "long ago"; "an hour long"
	2.	prolonged - 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" elongated, lengthened, extended long - primarily spatial sense; of relatively great or greater than average spatial extension or extension as specified; "a long road"; "a long distance"; "contained many long words"; "ten miles long"