ineffective
/ˌɪnɪˈfɛktɪv/
adjective
- Not producing the desired result; failing to achieve a goal.
- The medicine proved ineffective against the virus.
- His ineffective leadership caused the project to fail.
- Using a small brush for a large wall is ineffective and slow.
- Not having the ability to perform well; inefficient or weak.
- She felt ineffective as a teacher when students didn't understand.
- An ineffective speaker will lose the audience's attention quickly.
- The old heating system was ineffective and wasted energy.
Synonyms