Meanings
nounjackaninny (plural jackaninnies)
plural jackaninnies
- datedrarevulgarA foolish or incompetent person.
Synonyms: jackass, ninny, addle-brain, addlehead, addle pate, airhead, baboon, beanbrain
Synonyms & antonyms
nounA foolish or incompetent person.
Origin
Unknown; speculatively, influence may flow (in some direction) among the following words: jackass, ninny, jackanapes, pickaninny.
Full word history & related roots →Cite this entry
APA
jackaninny. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/jackaninny
MLA
“jackaninny.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/jackaninny. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “jackaninny,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/jackaninny.
Source: jackaninny on Wiktionary, CC BY-SA 4.0.