英语词汇ineffectual的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	ineffectual
词根词缀	词源： early 15c., from in- "not" + effectual (see effect).
随便看	improvement improve on improvident improvisation improvise impudence impudent impudicity impugn impulse impulsive impunity impure impurity impute imquest I-mutation, I-mutation -in in- in inaccessible in accordance with inactivity in addition

英语词根词缀词典收录了31503条英语词根词缀词条，基本涵盖了全部常用英语词汇的词根、词缀及词根记忆法解析，是记忆英语词汇的必备工具。