ineffectual

.ini'fektʃuәl

GRE Collins 1

a not producing an intended effect
s producing no result or effect
s lacking in power or forcefulness

a. 无效的, 无益的

Collins 星级

14,052

BNC 频率

17,367

使用频率

ineffectual 可以拆分为 in-（表示否定）+ effect（效果）+ -ual（形容词后缀）。因此，ineffectual 的意思就是“没有效果的”或“无效的”。

例句

1. His attempts to fix the car were ineffectual, and it still wouldn't start.

他修车的尝试无效，车还是无法启动。

2. The teacher's ineffectual methods did not help the students learn better.

老师无效的方法并没有帮助学生更好地学习。

3. The team's ineffectual strategy led to their defeat in the game.

团队无效的策略导致他们在比赛中失利。