Akademik

protracted
adjective
relatively long in duration; tediously protracted
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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, ↑prolonged
Similar to: ↑long
Derivationally related forms: ↑length (for: ↑lengthy), ↑lengthiness (for: ↑lengthy)

Useful english dictionary. 2012.