ineffective
词形变化：
副词: ineffectively | 名词: ineffectiveness |
同义词：
ineffectual | futile | fruitless | abortive | negative | worthless | invalid | unsuccessful | unproductive | lame | useless | vain | hopeless | feeble | uneffective | inefficient | unable |
反义词：
词义辨析：
同义参见:
futile
fruitless
negative
lame1
invalid1
ineffectual
worthless
abortive
反义:
a.无效的; 无能的
effective
反义参见:
powerful