Synonyms of lengthy

lengthy

adjective

ˈleŋ(k)-thē 

1

as in long

of great extent from end to end

she used a lengthy piece of rope to tie her dog to a tree

Synonyms & Similar Words

• long
• elongate
• extended
• large
• extensive
• outstretched
• longish
• oblong
• sizable
• far-reaching
• rectangular
• big
• king-size
• considerable
• substantial
• oversize
• hefty
• super
• jumbo
• largish
• biggish
• hulking
• overscale

Antonyms & Near Antonyms

• brief
• short
• curt
• abbreviated
• curtailed
• diminished
• abridged
• shortish
• small
• little
• tiny
• minute
• diminutive
• miniature
• shortened
• puny
• wee
• smallish
• undersized
• bitty
• teeny

2

as in far

lasting for a considerable time

the store manager gives new associates a lengthy sermon on the evils of shoplifting

Synonyms & Similar Words

• long
• far
• endless
• extended
• great
• long-drawn-out
• prolonged
• protracted
• marathon
• long-term
• long-lived
• interminable
• longish
• persistent
• overlong
• permanent
• everlasting
• multiyear
• aeonian
• all-day
• multiday
• all-night

Antonyms & Near Antonyms

• brief
• short
• little
• short-term
• sudden
• mini
• abrupt
• abbreviated
• curtailed
• condensed
• short-lived
• shortish
• transient
• momentary
• fleeting
• ephemeral
• transitory
• shortened
• short-range
• impermanent

Example Sentences

Recent Examples of lengthy

That number includes longtime AC/DC vocalist Brian Johnson, who has returned to the band after a lengthy hiatus related to hearing loss. — Jim Harrington, Mercury News, 6 Aug. 2026

Reactor startup breaks timeline The project’s speed is notable because nuclear projects typically involve lengthy design, construction, regulatory and commissioning processes. — Neetika Walter, Interesting Engineering, 6 Aug. 2026

Fra Angelico’s Fiesole Altarpiece, made between 1420 and 1423, has been returned to its original setting at the convent of San Domenico following a lengthy restoration. — News Desk, Artforum, 5 Aug. 2026

In April, after a lengthy investigation, Burke was arrested and charged with murder. — Nancy Dillon, Rolling Stone, 5 Aug. 2026