Definition of Picayune

Adjective: picayune ,pi-ku'yoon
Usage: N. Amer

(informal) small and of little importance
"giving a police officer a free meal may be against the law, but it seems to be a picayune infraction";
- fiddling, footling, lilliputian, little, niggling, piddling, piffling, petty, trivial, piddly

Noun: picayune ,pi-ku'yoon
Usage: N. Amer

Something of small importance
- triviality, trivia, trifle, small beer, small fry, piddler
An insignificant person
- pissant [N. Amer]