not achieving what you want to achieve; not having any effect无效果的；不起作用的；不奏效的- The new drug was ineffective.新药不起作用。🔊🔊
- ineffective management管理不善
- ineffective in doing something The law proved ineffective in dealing with the problem.事实证明这条法规未能真正解决问题。🔊🔊
opposite effectiveExtra Examples- These policies have proved ineffective.事实证明这些政策并不奏效。
- These weapons are totally ineffective against tanks.这些武器在坦克面前根本不起作用。
- chemicals that are very ineffective in killing weeds除草效果很差的化学品
- High interest rates proved to be ineffective in reducing inflation.事实证明高利率并未有效降低通货膨胀。
- It has been criticized as an unfair and ineffective system.这种体制被批不公、无效。
- She was offered psychotherapy, but this proved ineffective.她接受了心理治疗，但这被证明是无效的。
- The evidence demonstrates that punishment is ineffective as a deterrent.证据表明，惩罚不能起到威慑作用。
- The exemption clause in the contract is rendered ineffective by the new law.新法律使合同中的免责条款无效。
- The government continued with its much-publicized but largely ineffective policy of economic sanctions.政府继续实施其广为宣传但基本上无效的经济制裁政策。
Topics Change, cause and effectc1, Difficulty and failurec1Oxford Collocations DictionaryverbsadverbprepositionSee full entry Word Originmid 17th cent.: from in- + effective.