causeless
adj. 无原因的；无缘无故的
近义词：uncaused，reasonless，fortuitous，
英英释义
Adjective
- having no justifying cause or reason;
"a senseless, causeless murder" "a causeless war that never had an aim" "an apparently arbitrary and reasonless change"
- having no cause or apparent cause;
"a causeless miracle" "fortuitous encounters--strange accidents of fortune" "we cannot regard artistic invention as...uncaused and unrelated to the times"
例句
用作形容词(adj.)
- He became more irritable than ever, and it was Princess Marya who as a rule bore the brunt of his outbursts of causeless fury.他已经变得比从前更易于激动，多半在公爵小姐玛丽亚身上发泄他那无缘无故的怒火。