(about an arrangement, agreement, etc.) not definite or certain because you may want to change it later （安排、协议等）暂定的，暂行的◆The airline has reached a tentative agreement with its employees. 这家航空公司与其员工达成了临时协议。◆There are tentative signs of recovery in the advertising market. 广告市场初现复苏迹象。
not behaving with confidence; not done with confidence 试验性的；试探的；不果断的◆Consumers are no longer tentative about online shopping. 消费者对网上购物不再畏手畏脚。