gratuitously
adv. 无偿地；不必要地；无缘无故地；平白地
例句
They wanted me to change the title to something less gratuitously offensive.
他们想让我把标题改得不那么过于无礼。
《柯林斯英汉双解大词典》
This can cause tests to fail gratuitously.
这会导致测试无缘无故地失败。
Some may find our criticisms upsetting, but we do not make them gratuitously.
有些人会发现我们的批评是令人沮丧的，但我们也并非捕风捉影。
