be decided in favour of one party because of lack of opposition by the other party无对手情况下取胜
in default
guilty of failing to repay a loan or appear in a law court拖欠违约，不出庭罪
in default of
Through the failure, absence, or lack of.因缺少，在缺乏…时：因为不足、缺少或缺乏
柯林斯高阶英汉双解学习词典释义
VERB
不履行;未支付
If a person, company, or country defaults on something that they have legally agreed to do, such as paying some money or doing a piece of work before a particular time, they fail to do it.
In computing, the default is a particular set of instructions which the computer always uses unless the person using the computer gives other instructions.