Wordiyoineffective
🇬🇧 UK/ɪnɪ'fektɪv/🇺🇸 US/.ini'fektiv/
B2
Definitions
adj.
Not producing the desired result; failing to work properly or achieve its purpose.
无效的；不起作用的；无能的
🧩 Root Breakdown
Root-derivedinnot, opposite of
+
efout of, from
+
tconnector
+
ivetending to, having the nature of
=ineffective
Common Collocations
- 1.completely ineffective完全无效
- 2.largely ineffective基本无效
Example Sentences
- 1.
The treatment proved ineffective against the disease.