英语词汇undoubtable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	undoubtable
词根词缀	Online Etymology Dictionary undoubtable adj. early 15c., from un-(1) "not" + doubt, v. + -able. Related: Undoubtably.
随便看	investigative investigator investiture investment investor inveteracy inveterate inviable invictus invidious invigilate invigilator invigorate invigorating invigoration invincibility invincible inviolability inviolable inviolate invisibility invisible invision invita Minerva invitation

英语词根词缀词典收录了54763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。