前缀：un-

【词根含义】：否定

【词根来源】：在希腊语中为a-, an-,拉丁语中为in-,哥特语为un-,古斯堪的纳维亚语为u-,古高地德语为un-,古英语为ne。

【同源单词】：unable, unalienable, unassuming, unbearable, unceasing

词根词缀：-able

【来源及含义】Latin: a suffix; expressing capacity, fitness to do that which can be handled or managed, suitable skills to accomplish something; capable of being done, something which can be finished, etc.

【相关描述】A suffix that forms adjectives. The suffix -ible has related meanings; expressing ability, capacity, fitness; capable of, fit for, able to be done, can be done, inclined to, tending to, given to.

This list is only a small sample of the thousands of -able words that exist in English.

【同源单词】abdicable, -able, abolishable, abominable, abradable, acceptable