In a particular situation, the overriding factor is the one that is the most important.
例句
My overriding concern is to raise the standards of state education...我最關心的是提高國民教育水平。Given the overriding need to cut the budget deficit, the administration will ask congress for only $15 million this summer.考慮到當務之急是削減預算赤字，今年夏天政府只計劃向國會申請1,500萬美元的預算。
英漢詞典釋義
adj.
最重要的；高于一切的
Development is of overriding importance.發展是硬道理
英英詞典釋義
Adjective
1. having superior power and influence;
"the predominant mood among policy-makers is optimism"