Petty definition

(1) Contemptibly narrow in outlook

"Petty little comments"

"Disgusted with their small-minded pettiness"

(2) (informal) small and of little importance

"A fiddling sum of money"

"A footling gesture"

"Our worries are lilliputian compared with those of countries that are at war"

"A little (or small) matter"

"A dispute over niggling details"

"Limited to petty enterprises"

"Piffling efforts"

"Giving a police officer a free meal may be against the law, but it seems to be a picayune infraction"

(3) Larceny of property having a value less than some amount (the amount varies by locale)