lengthy

Adjective

Synonyms: drawn-out extended prolonged protracted

WordNet 3.0

Adjective (1)

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”Synonyms: drawn-out extended prolonged protracted

Webster's Dictionary (GCIDE)

Lengthy \Length"y\ (-[y^]), a. [Compar. Lengthier (-[i^]*[~e]r); superl. Lengthiest.] Having length; rather long or too long; prolix; not brief; -- said chiefly of discourses, writings, and the like. "Lengthy periods." --Washington. "Some lengthy additions." --Byron. "These would be details too lengthy." --Jefferson. "To cut short lengthy explanations." --Trench. [1913 Webster] Lenience