Standard Lemma guide

jackleg

adj · noun · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

No pronunciation record was provided for this word.

1

adj

Meaning 1

Amateur, untrained; incompetent.

Definition source: English Wiktionary via Wiktextract

Usage: US, not-comparable

Examples

  • 1841, Letter to the editor, The Southern Planter, Volume I, No. 1, January 1841, p. 12, The next year I had a projecting kind of jack leg carpenter, from Hanover, living with me in the capacity of overseer [...]
  • 1941, Martha Colquitt, Interview published in Slave Narratives, Library of Congress Project, Volume 4: Georgia Narratives, Part 1, Grandma didn’t think chillun ought to see funerals, so de first one I ever seed, wuz when ma died two years atter de War wuz done over. A jackleg colored preacher talked, but he didn’t have sense ’nuff to preach a sho’ ’nuff sermon.
  • 1957, Frederik Pohl and C. M. Kornbluth, Wolfbane, Chapter 11, in Galaxy Science Fiction, He was a doer, not a thinker; his skills were the skills of an artisan, a tinkerer, a jackleg mechanic.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Dishonest, unscrupulous.

Definition source: English Wiktionary via Wiktextract

Usage: US, not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Ineptly built or operated; makeshift.

Definition source: English Wiktionary via Wiktextract

Usage: US, not-comparable

Examples

  • 2005, William Hoffman, Lies, Montgomery, Alabama: River City Publishing, Chapter 23, p. 226, Driving the secondhand Chevy pickup, he visits not only major car dealerships but also every jackleg garage he happens upon in dusty sun-blasted towns of the Deep South.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A type of drill operated by means of compressed air.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

An amateur; an untrained or incompetent person.

Definition source: English Wiktionary via Wiktextract

Usage: US

Examples

  • 1999, David Horsley, Into the Wind, Houston, Texas: Winedale Publishing, “Tops for Trees,” p. 180, If it were up to me, we’d have a city ordinance against incompetent pruning of trees. You need a permit to unclog a sewer or fix a light switch, but any jackleg with a chainsaw can climb up a ladder and undo in five minutes what Mother Nature took decades to accomplish.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A shyster or con artist; a gambler who cheats; a generally dishonest or reprehensible person.

Definition source: English Wiktionary via Wiktextract

Usage: US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From jack + leg. Compare blackleg (“a person who replaces striking workers; a cheater”) and such expressions as jack of all trades, every man jack.