1.
[syn: drawn-out, extended, lengthy, prolonged, protracted]
The Collaborative International Dictionary of English v.0.48:
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
WordNet (r) 3.0 (2006):
lengthy
adj 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" [syn: drawn-out,
extended, lengthy, prolonged, protracted]