pet·ty/`pɛtɪ; ˈpeti/ adj 1 something that is petty is not serious or important 微不足道的，琐碎的: a petty argument 小争吵 petty crime (=crime that is not very serious) 轻罪 2 caring too much about small, unimportant rules or details 心胸狭窄的，小气的: She can be very petty about money. 她对钱可以是锱铢必较的。