Akademik

prolonged
adjective
1. relatively long in duration; tediously protracted (Freq. 5)
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a drawn-out argument

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an extended discussion

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a lengthy visit from her mother-in-law

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a prolonged and bitter struggle

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protracted negotiations

Syn: ↑drawn-out, ↑extended, ↑lengthy, ↑protracted
Similar to: ↑long
Derivationally related forms: ↑length (for: ↑lengthy), ↑lengthiness (for: ↑lengthy)
2. drawn out or made longer spatially
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Picasso's elongated Don Quixote

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lengthened skirts are fashionable this year

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the extended airport runways can accommodate larger planes

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a prolonged black line across the page

Syn: ↑elongated, ↑extended, ↑lengthened
Similar to: ↑long

Useful english dictionary. 2012.