\ ˈleŋ(k)-thē , ˈlen(t)-\
lengthier; lengthiest

Definition of lengthy

1 : protracted excessively : overlong
2 : extended, long

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Other Words from lengthy

lengthily \ ˈleŋ(k)-​thə-​lē , ˈlen(t)-​ \ adverb
lengthiness \ ˈleŋ(k)-​thē-​nəs , ˈlen(t)-​ \ noun

Synonyms & Antonyms for lengthy


elongate (or elongated), extended, king-size (or king-sized), long


brief, curt, short, shortish

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Examples of lengthy in a Sentence

The process is both lengthy and costly. a series of lengthy delays Lengthier trips require more planning.
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Recent Examples on the Web

Our relationship, even though quite lengthy, was primarily based around the band. Katherine Turman, Billboard, "James Williamson on His New Trio Pink Hearts & the Stooges' Legacy," 21 June 2018 The decision not to charge Mr. Liu spares him not only potentially lengthy legal proceedings in the U.S. Austen Hufford And Te-ping Chen, WSJ, "JD.com Founder Liu Won’t Face Charges in Sexual-Assault Case," 21 Dec. 2018 Musk had another high-profile week, high-stress week, culminating in a lengthy interview with The New York Times; Tesla shares sank 9 percent on Friday. Recode Staff, Recode, "Recode Daily: Have we broken Elon Musk?," 20 Aug. 2018 This weekend, the son of Ellison’s ex-girlfriend wrote a lengthy Facebook post saying that Ellison had abused the woman. Ella Nilsen, Vox, "Live results for Minnesota primary elections," 14 Aug. 2018 San Francisco District Attorney George Gascón said six of seven suspects are in custody and one is outstanding following a lengthy investigation involving his office, the National Park Service and a number of community business organizations. Lauren Hernandez, SFChronicle.com, "Seven ‘high-profile’ graffiti taggers indicted in taggings across San Francisco," 10 July 2018 The lengthy genetic and archaeological investigation argues that dogs native to the Americas were essentially completely wiped out by the arrival of European dogs in the 15th century. Marc Daalder, ajc, "Why none of our dog breeds are native to America," 6 July 2018 Police began a lengthy investigation, even though Zolkowski was unwilling to cooperate with it or go through a physical exam. Breanna Edwards, The Root, "Michigan Woman Who Lied About Black Man Raping Her in College Parking Lot Sentenced to 45 Days in Jail," 20 June 2018 The bane of my existence barks and whines at all hours of the day and night, with particularly lengthy performances beginning at 5:30 a.m. without fail. Caroline Picard, Good Housekeeping, "I Can’t Sleep Without My Big Red Rooster White Noise Machine," 11 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lengthy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lengthy

1689, in the meaning defined at sense 1

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Statistics for lengthy

Last Updated

15 Feb 2019

Look-up Popularity

Time Traveler for lengthy

The first known use of lengthy was in 1689

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More Definitions for lengthy



English Language Learners Definition of lengthy

: lasting for a long time
: having many pages, items, etc.


\ ˈleŋ-thē \
lengthier; lengthiest

Kids Definition of lengthy

: very long a lengthy argument

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More from Merriam-Webster on lengthy

Thesaurus: All synonyms and antonyms for lengthy

Spanish Central: Translation of lengthy

Nglish: Translation of lengthy for Spanish Speakers

Britannica English: Translation of lengthy for Arabic Speakers

Comments on lengthy

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very full or close together

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