(1)无罪答辩
指在刑事诉讼中，被告人所作的否认犯有起诉方指控的罪行的答辩。

(2)无过错答辩
侵权诉讼中的被告所作的概括否认答辩。

• unreasonable restraint of trade
• unreasonable restraint on alienation
• unreasonable search
• unreasonable search and seizure
• unreasonable seizure
• unrecorded
• unregistered companies
• unregistered security
• unrelated business income
• unrelated business income tax
• unrelated offenses
• unresponsive answer
• unresponsive evidence
• unruly and dangerous animals
• unsafe
• unsafe bank
• unsafe driver
• unsafe speed
• unsatisfactory title
• unsatisfied judgment funds
• unscheduled assets
• unseated land
• unseaworthy
• unseaworthy ships
• unsecured bond